21807450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 216

約数和(自身を含む): 72772128

約数和(自身を除く): 50964678

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 25, 30, 35, 42, 43, 45, 46, 49, 50, 63, 69, 70, 75, 86, 90, 98, 105, 115, 126, 129, 138, 147, 150, 161, 175, 207, 210, 215, 225, 230, 245, 258, 294, 301, 315, 322, 345, 350, 387, 414, 430, 441, 450, 483, 490, 525, 575, 602, 630, 645, 690, 735, 774, 805, 882, 903, 966, 989, 1035, 1050, 1075, 1127, 1150, 1225, 1290, 1449, 1470, 1505, 1575, 1610, 1725, 1806, 1935, 1978, 2070, 2107, 2150, 2205, 2254, 2415, 2450, 2709, 2898, 2967, 3010, 3150, 3225, 3381, 3450, 3675, 3870, 4025, 4214, 4410, 4515, 4830, 4945, 5175, 5418, 5635, 5934, 6321, 6450, 6762, 6923, 7245, 7350, 7525, 8050, 8901, 9030, 9675, 9890, 10143, 10350, 10535, 11025, 11270, 12075, 12642, 13545, 13846, 14490, 14835, 15050, 16905, 17802, 18963, 19350, 20286, 20769, 21070, 22050, 22575, 24150, 24725, 27090, 28175, 29670, 31605, 33810, 34615, 36225, 37926, 41538, 44505, 45150, 48461, 49450, 50715, 52675, 56350, 62307, 63210, 67725, 69230, 72450, 74175, 84525, 89010, 94815, 96922, 101430, 103845, 105350, 124614, 135450, 145383, 148350, 158025, 169050, 173075, 189630, 207690, 222525, 242305, 253575, 290766, 311535, 316050, 346150, 436149, 445050, 474075, 484610, 507150, 519225, 623070, 726915, 872298, 948150, 1038450, 1211525, 1453830, 1557675, 2180745, 2423050, 3115350, 3634575, 4361490, 7269150, 10903725, 21807450]

約数ペア:

[(1, 21807450), (2, 10903725), (3, 7269150), (5, 4361490), (6, 3634575), (7, 3115350), (9, 2423050), (10, 2180745), (14, 1557675), (15, 1453830), (18, 1211525), (21, 1038450), (23, 948150), (25, 872298), (30, 726915), (35, 623070), (42, 519225), (43, 507150), (45, 484610), (46, 474075), (49, 445050), (50, 436149), (63, 346150), (69, 316050), (70, 311535), (75, 290766), (86, 253575), (90, 242305), (98, 222525), (105, 207690), (115, 189630), (126, 173075), (129, 169050), (138, 158025), (147, 148350), (150, 145383), (161, 135450), (175, 124614), (207, 105350), (210, 103845), (215, 101430), (225, 96922), (230, 94815), (245, 89010), (258, 84525), (294, 74175), (301, 72450), (315, 69230), (322, 67725), (345, 63210), (350, 62307), (387, 56350), (414, 52675), (430, 50715), (441, 49450), (450, 48461), (483, 45150), (490, 44505), (525, 41538), (575, 37926), (602, 36225), (630, 34615), (645, 33810), (690, 31605), (735, 29670), (774, 28175), (805, 27090), (882, 24725), (903, 24150), (966, 22575), (989, 22050), (1035, 21070), (1050, 20769), (1075, 20286), (1127, 19350), (1150, 18963), (1225, 17802), (1290, 16905), (1449, 15050), (1470, 14835), (1505, 14490), (1575, 13846), (1610, 13545), (1725, 12642), (1806, 12075), (1935, 11270), (1978, 11025), (2070, 10535), (2107, 10350), (2150, 10143), (2205, 9890), (2254, 9675), (2415, 9030), (2450, 8901), (2709, 8050), (2898, 7525), (2967, 7350), (3010, 7245), (3150, 6923), (3225, 6762), (3381, 6450), (3450, 6321), (3675, 5934), (3870, 5635), (4025, 5418), (4214, 5175), (4410, 4945), (4515, 4830)]