21065110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10079}}^1$

素因数の和:10116

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 22480490

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10079, 20158, 50395, 100790, 110869, 191501, 221738, 383002, 554345, 957505, 1108690, 1915010, 2106511, 4213022, 10532555, 21065110]

約数ペア:

[(1, 21065110), (2, 10532555), (5, 4213022), (10, 2106511), (11, 1915010), (19, 1108690), (22, 957505), (38, 554345), (55, 383002), (95, 221738), (110, 191501), (190, 110869), (209, 100790), (418, 50395), (1045, 20158), (2090, 10079)]