21189410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{192631}}^1$

素因数の和:192649

約数の個数: 16

約数和(自身を含む): 41608512

約数和(自身を除く): 20419102

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 192631, 385262, 963155, 1926310, 2118941, 4237882, 10594705, 21189410]

約数ペア:

[(1, 21189410), (2, 10594705), (5, 4237882), (10, 2118941), (11, 1926310), (22, 963155), (55, 385262), (110, 192631)]