21000686704

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{4541671}}^1$

素因数の和:4541713

約数の個数: 30

約数和(自身を含む): 43223092424

約数和(自身を除く): 22222405720

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4624, 4541671, 9083342, 18166684, 36333368, 72666736, 77208407, 154416814, 308833628, 617667256, 1235334512, 1312542919, 2625085838, 5250171676, 10500343352, 21000686704]

約数ペア:

[(1, 21000686704), (2, 10500343352), (4, 5250171676), (8, 2625085838), (16, 1312542919), (17, 1235334512), (34, 617667256), (68, 308833628), (136, 154416814), (272, 77208407), (289, 72666736), (578, 36333368), (1156, 18166684), (2312, 9083342), (4624, 4541671)]