991213356

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:381

約数の個数: 216

約数和(自身を含む): 3018227520

約数和(自身を除く): 2027014164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 49, 51, 57, 68, 76, 84, 98, 102, 114, 119, 133, 147, 196, 204, 228, 238, 266, 289, 294, 307, 323, 357, 399, 476, 532, 578, 588, 614, 646, 714, 798, 833, 867, 921, 931, 969, 1156, 1228, 1292, 1428, 1596, 1666, 1734, 1842, 1862, 1938, 2023, 2149, 2261, 2499, 2793, 3332, 3468, 3684, 3724, 3876, 4046, 4298, 4522, 4998, 5219, 5491, 5586, 5833, 6069, 6447, 6783, 8092, 8596, 9044, 9996, 10438, 10982, 11172, 11666, 12138, 12894, 13566, 14161, 15043, 15657, 15827, 16473, 17499, 20876, 21964, 23332, 24276, 25788, 27132, 28322, 30086, 31314, 31654, 32946, 34998, 36533, 38437, 40831, 42483, 45129, 47481, 56644, 60172, 62628, 63308, 65892, 69996, 73066, 76874, 81662, 84966, 88723, 90258, 94962, 99161, 109599, 115311, 122493, 146132, 153748, 163324, 169932, 177446, 180516, 189924, 198322, 219198, 230622, 244986, 255731, 266169, 269059, 285817, 297483, 354892, 396644, 438396, 461244, 489972, 511462, 532338, 538118, 571634, 594966, 621061, 694127, 767193, 807177, 857451, 1022924, 1064676, 1076236, 1143268, 1189932, 1242122, 1388254, 1534386, 1614354, 1685737, 1714902, 1863183, 2082381, 2484244, 2776508, 3068772, 3228708, 3371474, 3429804, 3726366, 4164762, 4347427, 4858889, 5057211, 6742948, 7452732, 8329524, 8694854, 9717778, 10114422, 11800159, 13042281, 14576667, 17389708, 19435556, 20228844, 23600318, 26084562, 29153334, 35400477, 47200636, 52169124, 58306668, 70800954, 82601113, 141601908, 165202226, 247803339, 330404452, 495606678, 991213356]

約数ペア:

[(1, 991213356), (2, 495606678), (3, 330404452), (4, 247803339), (6, 165202226), (7, 141601908), (12, 82601113), (14, 70800954), (17, 58306668), (19, 52169124), (21, 47200636), (28, 35400477), (34, 29153334), (38, 26084562), (42, 23600318), (49, 20228844), (51, 19435556), (57, 17389708), (68, 14576667), (76, 13042281), (84, 11800159), (98, 10114422), (102, 9717778), (114, 8694854), (119, 8329524), (133, 7452732), (147, 6742948), (196, 5057211), (204, 4858889), (228, 4347427), (238, 4164762), (266, 3726366), (289, 3429804), (294, 3371474), (307, 3228708), (323, 3068772), (357, 2776508), (399, 2484244), (476, 2082381), (532, 1863183), (578, 1714902), (588, 1685737), (614, 1614354), (646, 1534386), (714, 1388254), (798, 1242122), (833, 1189932), (867, 1143268), (921, 1076236), (931, 1064676), (969, 1022924), (1156, 857451), (1228, 807177), (1292, 767193), (1428, 694127), (1596, 621061), (1666, 594966), (1734, 571634), (1842, 538118), (1862, 532338), (1938, 511462), (2023, 489972), (2149, 461244), (2261, 438396), (2499, 396644), (2793, 354892), (3332, 297483), (3468, 285817), (3684, 269059), (3724, 266169), (3876, 255731), (4046, 244986), (4298, 230622), (4522, 219198), (4998, 198322), (5219, 189924), (5491, 180516), (5586, 177446), (5833, 169932), (6069, 163324), (6447, 153748), (6783, 146132), (8092, 122493), (8596, 115311), (9044, 109599), (9996, 99161), (10438, 94962), (10982, 90258), (11172, 88723), (11666, 84966), (12138, 81662), (12894, 76874), (13566, 73066), (14161, 69996), (15043, 65892), (15657, 63308), (15827, 62628), (16473, 60172), (17499, 56644), (20876, 47481), (21964, 45129), (23332, 42483), (24276, 40831), (25788, 38437), (27132, 36533), (28322, 34998), (30086, 32946), (31314, 31654)]