18870106

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{1129}}^1$

素因数の和:1329

約数の個数: 16

約数和(自身を含む): 29004840

約数和(自身を除く): 10134734

約数列:

[1, 2, 61, 122, 137, 274, 1129, 2258, 8357, 16714, 68869, 137738, 154673, 309346, 9435053, 18870106]

約数ペア:

[(1, 18870106), (2, 9435053), (61, 309346), (122, 154673), (137, 137738), (274, 68869), (1129, 16714), (2258, 8357)]