19866466

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:729

約数の個数: 16

約数和(自身を含む): 30260160

約数和(自身を除く): 10393694

約数列:

[1, 2, 151, 157, 302, 314, 419, 838, 23707, 47414, 63269, 65783, 126538, 131566, 9933233, 19866466]

約数ペア:

[(1, 19866466), (2, 9933233), (151, 131566), (157, 126538), (302, 65783), (314, 63269), (419, 47414), (838, 23707)]