21352785

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9067}}^1$

素因数の和:9232

約数の個数: 16

約数和(自身を含む): 34385856

約数和(自身を除く): 13033071

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9067, 27201, 45335, 136005, 1423519, 4270557, 7117595, 21352785]

約数ペア:

[(1, 21352785), (3, 7117595), (5, 4270557), (15, 1423519), (157, 136005), (471, 45335), (785, 27201), (2355, 9067)]