20215813

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 21888000

約数和(自身を除く): 1672187

約数列:

[1, 29, 31, 113, 199, 899, 3277, 3503, 5771, 6169, 22487, 101587, 178901, 652123, 697097, 20215813]

約数ペア:

[(1, 20215813), (29, 697097), (31, 652123), (113, 178901), (199, 101587), (899, 22487), (3277, 6169), (3503, 5771)]