221405723

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{5519}}^1$

素因数の和:6058

約数の個数: 16

約数和(自身を含む): 276618240

約数和(自身を除く): 55212517

約数列:

[1, 7, 11, 77, 521, 3647, 5519, 5731, 38633, 40117, 60709, 424963, 2875399, 20127793, 31629389, 221405723]

約数ペア:

[(1, 221405723), (7, 31629389), (11, 20127793), (77, 2875399), (521, 424963), (3647, 60709), (5519, 40117), (5731, 38633)]