21000739210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{190915811}}^1$

素因数の和:190915829

約数の個数: 16

約数和(自身を含む): 41237815392

約数和(自身を除く): 20237076182

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 190915811, 381831622, 954579055, 1909158110, 2100073921, 4200147842, 10500369605, 21000739210]

約数ペア:

[(1, 21000739210), (2, 10500369605), (5, 4200147842), (10, 2100073921), (11, 1909158110), (22, 954579055), (55, 381831622), (110, 190915811)]