21504230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{195493}}^1$

素因数の和:195511

約数の個数: 16

約数和(自身を含む): 42226704

約数和(自身を除く): 20722474

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 195493, 390986, 977465, 1954930, 2150423, 4300846, 10752115, 21504230]

約数ペア:

[(1, 21504230), (2, 10752115), (5, 4300846), (10, 2150423), (11, 1954930), (22, 977465), (55, 390986), (110, 195493)]