21062755

素因数分解:

$5^1\times 7^1\times {\mathrm{733}}^1\times {\mathrm{821}}^1$

素因数の和:1566

約数の個数: 16

約数和(自身を含む): 28960704

約数和(自身を除く): 7897949

約数列:

[1, 5, 7, 35, 733, 821, 3665, 4105, 5131, 5747, 25655, 28735, 601793, 3008965, 4212551, 21062755]

約数ペア:

[(1, 21062755), (5, 4212551), (7, 3008965), (35, 601793), (733, 28735), (821, 25655), (3665, 5747), (4105, 5131)]