21516040895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{21149}}^1\times {\mathrm{10709}}^1$

素因数の和:31882

約数の個数: 16

約数和(自身を含む): 27181980000

約数和(自身を除く): 5665939105

約数列:

[1, 5, 19, 95, 10709, 21149, 53545, 105745, 203471, 401831, 1017355, 2009155, 226484641, 1132423205, 4303208179, 21516040895]

約数ペア:

[(1, 21516040895), (5, 4303208179), (19, 1132423205), (95, 226484641), (10709, 2009155), (21149, 1017355), (53545, 401831), (105745, 203471)]