12421255

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{419}}^1$

素因数の和:460

約数の個数: 36

約数和(自身を含む): 19104120

約数和(自身を除く): 6682865

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 121, 245, 385, 419, 539, 605, 847, 2095, 2695, 2933, 4235, 4609, 5929, 14665, 20531, 23045, 29645, 32263, 50699, 102655, 161315, 225841, 253495, 354893, 1129205, 1774465, 2484251, 12421255]

約数ペア:

[(1, 12421255), (5, 2484251), (7, 1774465), (11, 1129205), (35, 354893), (49, 253495), (55, 225841), (77, 161315), (121, 102655), (245, 50699), (385, 32263), (419, 29645), (539, 23045), (605, 20531), (847, 14665), (2095, 5929), (2695, 4609), (2933, 4235)]