21319210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193811}}^1$

素因数の和:193829

約数の個数: 16

約数和(自身を含む): 41863392

約数和(自身を除く): 20544182

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193811, 387622, 969055, 1938110, 2131921, 4263842, 10659605, 21319210]

約数ペア:

[(1, 21319210), (2, 10659605), (5, 4263842), (10, 2131921), (11, 1938110), (22, 969055), (55, 387622), (110, 193811)]