21920110

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2683}}^1$

素因数の和:2752

約数の個数: 32

約数和(自身を含む): 42514560

約数和(自身を除く): 20594450

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 2683, 4085, 5366, 8170, 13415, 26830, 50977, 101954, 115369, 230738, 254885, 509770, 576845, 1153690, 2192011, 4384022, 10960055, 21920110]

約数ペア:

[(1, 21920110), (2, 10960055), (5, 4384022), (10, 2192011), (19, 1153690), (38, 576845), (43, 509770), (86, 254885), (95, 230738), (190, 115369), (215, 101954), (430, 50977), (817, 26830), (1634, 13415), (2683, 8170), (4085, 5366)]