21018333

素因数分解:

$3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{4153}}^1$

素因数の和:4404

約数の個数: 16

約数和(自身を含む): 32168576

約数和(自身を除く): 11150243

約数列:

[1, 3, 7, 21, 241, 723, 1687, 4153, 5061, 12459, 29071, 87213, 1000873, 3002619, 7006111, 21018333]

約数ペア:

[(1, 21018333), (3, 7006111), (7, 3002619), (21, 1000873), (241, 87213), (723, 29071), (1687, 12459), (4153, 5061)]