21322370

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112223}}^1$

素因数の和:112249

約数の個数: 16

約数和(自身を含む): 40400640

約数和(自身を除く): 19078270

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112223, 224446, 561115, 1122230, 2132237, 4264474, 10661185, 21322370]

約数ペア:

[(1, 21322370), (2, 10661185), (5, 4264474), (10, 2132237), (19, 1122230), (38, 561115), (95, 224446), (190, 112223)]