21821646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{317}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 54950400

約数和(自身を除く): 33128754

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 149, 154, 231, 298, 317, 447, 462, 634, 894, 951, 1043, 1639, 1902, 2086, 2219, 3129, 3278, 3487, 4438, 4917, 6258, 6657, 6974, 9834, 10461, 11473, 13314, 20922, 22946, 24409, 34419, 47233, 48818, 68838, 73227, 94466, 141699, 146454, 283398, 330631, 519563, 661262, 991893, 1039126, 1558689, 1983786, 3117378, 3636941, 7273882, 10910823, 21821646]

約数ペア:

[(1, 21821646), (2, 10910823), (3, 7273882), (6, 3636941), (7, 3117378), (11, 1983786), (14, 1558689), (21, 1039126), (22, 991893), (33, 661262), (42, 519563), (66, 330631), (77, 283398), (149, 146454), (154, 141699), (231, 94466), (298, 73227), (317, 68838), (447, 48818), (462, 47233), (634, 34419), (894, 24409), (951, 22946), (1043, 20922), (1639, 13314), (1902, 11473), (2086, 10461), (2219, 9834), (3129, 6974), (3278, 6657), (3487, 6258), (4438, 4917)]