21783802

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:885

約数の個数: 16

約数和(自身を含む): 33223680

約数和(自身を除く): 11439878

約数列:

[1, 2, 127, 139, 254, 278, 617, 1234, 17653, 35306, 78359, 85763, 156718, 171526, 10891901, 21783802]

約数ペア:

[(1, 21783802), (2, 10891901), (127, 171526), (139, 156718), (254, 85763), (278, 78359), (617, 35306), (1234, 17653)]