21096015

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32707}}^1$

素因数の和:32758

約数の個数: 16

約数和(自身を含む): 34539648

約数和(自身を除く): 13443633

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32707, 98121, 163535, 490605, 1406401, 4219203, 7032005, 21096015]

約数ペア:

[(1, 21096015), (3, 7032005), (5, 4219203), (15, 1406401), (43, 490605), (129, 163535), (215, 98121), (645, 32707)]