12121718

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3343}}^1$

素因数の和:3396

約数の個数: 24

約数和(自身を含む): 21729312

約数和(自身を除く): 9607594

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3343, 3626, 6686, 23401, 46802, 123691, 163807, 247382, 327614, 865837, 1731674, 6060859, 12121718]

約数ペア:

[(1, 12121718), (2, 6060859), (7, 1731674), (14, 865837), (37, 327614), (49, 247382), (74, 163807), (98, 123691), (259, 46802), (518, 23401), (1813, 6686), (3343, 3626)]