20161971396

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{1153}}^1$

素因数の和:1631

約数の個数: 216

約数和(自身を含む): 62060753664

約数和(自身を除く): 41898782268

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 49, 63, 69, 84, 92, 98, 126, 138, 147, 161, 196, 207, 252, 276, 294, 322, 414, 431, 441, 483, 588, 644, 828, 862, 882, 966, 1127, 1153, 1293, 1449, 1724, 1764, 1932, 2254, 2306, 2586, 2898, 3017, 3381, 3459, 3879, 4508, 4612, 5172, 5796, 6034, 6762, 6918, 7758, 8071, 9051, 9913, 10143, 10377, 12068, 13524, 13836, 15516, 16142, 18102, 19826, 20286, 20754, 21119, 24213, 26519, 27153, 29739, 32284, 36204, 39652, 40572, 41508, 42238, 48426, 53038, 54306, 56497, 59478, 63357, 69391, 72639, 79557, 84476, 89217, 96852, 106076, 108612, 112994, 118956, 126714, 138782, 145278, 159114, 169491, 178434, 185633, 190071, 208173, 225988, 238671, 253428, 277564, 290556, 318228, 338982, 356868, 371266, 380142, 416346, 477342, 485737, 496943, 508473, 556899, 624519, 677964, 742532, 760284, 832692, 954684, 971474, 993886, 1016946, 1113798, 1249038, 1299431, 1457211, 1490829, 1670697, 1942948, 1987772, 2033892, 2227596, 2498076, 2598862, 2914422, 2981658, 3341394, 3478601, 3898293, 4371633, 4472487, 5197724, 5828844, 5963316, 6682788, 6957202, 7796586, 8743266, 8944974, 10435803, 11429689, 11694879, 13914404, 15593172, 17486532, 17889948, 20871606, 22859378, 23389758, 24350207, 31307409, 34289067, 41743212, 45718756, 46779516, 48700414, 62614818, 68578134, 73050621, 80007823, 97400828, 102867201, 125229636, 137156268, 146101242, 160015646, 205734402, 219151863, 240023469, 292202484, 320031292, 411468804, 438303726, 480046938, 560054761, 720070407, 876607452, 960093876, 1120109522, 1440140814, 1680164283, 2240219044, 2880281628, 3360328566, 5040492849, 6720657132, 10080985698, 20161971396]

約数ペア:

[(1, 20161971396), (2, 10080985698), (3, 6720657132), (4, 5040492849), (6, 3360328566), (7, 2880281628), (9, 2240219044), (12, 1680164283), (14, 1440140814), (18, 1120109522), (21, 960093876), (23, 876607452), (28, 720070407), (36, 560054761), (42, 480046938), (46, 438303726), (49, 411468804), (63, 320031292), (69, 292202484), (84, 240023469), (92, 219151863), (98, 205734402), (126, 160015646), (138, 146101242), (147, 137156268), (161, 125229636), (196, 102867201), (207, 97400828), (252, 80007823), (276, 73050621), (294, 68578134), (322, 62614818), (414, 48700414), (431, 46779516), (441, 45718756), (483, 41743212), (588, 34289067), (644, 31307409), (828, 24350207), (862, 23389758), (882, 22859378), (966, 20871606), (1127, 17889948), (1153, 17486532), (1293, 15593172), (1449, 13914404), (1724, 11694879), (1764, 11429689), (1932, 10435803), (2254, 8944974), (2306, 8743266), (2586, 7796586), (2898, 6957202), (3017, 6682788), (3381, 5963316), (3459, 5828844), (3879, 5197724), (4508, 4472487), (4612, 4371633), (5172, 3898293), (5796, 3478601), (6034, 3341394), (6762, 2981658), (6918, 2914422), (7758, 2598862), (8071, 2498076), (9051, 2227596), (9913, 2033892), (10143, 1987772), (10377, 1942948), (12068, 1670697), (13524, 1490829), (13836, 1457211), (15516, 1299431), (16142, 1249038), (18102, 1113798), (19826, 1016946), (20286, 993886), (20754, 971474), (21119, 954684), (24213, 832692), (26519, 760284), (27153, 742532), (29739, 677964), (32284, 624519), (36204, 556899), (39652, 508473), (40572, 496943), (41508, 485737), (42238, 477342), (48426, 416346), (53038, 380142), (54306, 371266), (56497, 356868), (59478, 338982), (63357, 318228), (69391, 290556), (72639, 277564), (79557, 253428), (84476, 238671), (89217, 225988), (96852, 208173), (106076, 190071), (108612, 185633), (112994, 178434), (118956, 169491), (126714, 159114), (138782, 145278)]