21226585

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1409}}^1$

素因数の和:1568

約数の個数: 16

約数和(自身を含む): 26801280

約数和(自身を除く): 5574695

約数列:

[1, 5, 23, 115, 131, 655, 1409, 3013, 7045, 15065, 32407, 162035, 184579, 922895, 4245317, 21226585]

約数ペア:

[(1, 21226585), (5, 4245317), (23, 922895), (115, 184579), (131, 162035), (655, 32407), (1409, 15065), (3013, 7045)]