15665978021

素因数分解:

${\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{398129}}^1$

素因数の和:398276

約数の個数: 12

約数和(自身を含む): 16685628300

約数和(自身を除く): 1019650279

約数列:

[1, 19, 109, 361, 2071, 39349, 398129, 7564451, 43396061, 143724569, 824525159, 15665978021]

約数ペア:

[(1, 15665978021), (19, 824525159), (109, 143724569), (361, 43396061), (2071, 7564451), (39349, 398129)]