19717885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1877}}^1$

素因数の和:2084

約数の個数: 16

約数和(自身を含む): 25961472

約数和(自身を除く): 6243587

約数列:

[1, 5, 11, 55, 191, 955, 1877, 2101, 9385, 10505, 20647, 103235, 358507, 1792535, 3943577, 19717885]

約数ペア:

[(1, 19717885), (5, 3943577), (11, 1792535), (55, 358507), (191, 103235), (955, 20647), (1877, 10505), (2101, 9385)]