21370305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129517}}^1$

素因数の和:129536

約数の個数: 16

約数和(自身を含む): 37301184

約数和(自身を除く): 15930879

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 129517, 388551, 647585, 1424687, 1942755, 4274061, 7123435, 21370305]

約数ペア:

[(1, 21370305), (3, 7123435), (5, 4274061), (11, 1942755), (15, 1424687), (33, 647585), (55, 388551), (165, 129517)]