21551255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2819}}^1$

素因数の和:2974

約数の個数: 16

約数和(自身を含む): 28425600

約数和(自身を除く): 6874345

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2819, 7645, 14095, 31009, 155045, 391841, 1959205, 4310251, 21551255]

約数ペア:

[(1, 21551255), (5, 4310251), (11, 1959205), (55, 391841), (139, 155045), (695, 31009), (1529, 14095), (2819, 7645)]