20619215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{3323}}^1$

素因数の和:3418

約数の個数: 16

約数和(自身を含む): 26565408

約数和(自身を除く): 5946193

約数列:

[1, 5, 17, 73, 85, 365, 1241, 3323, 6205, 16615, 56491, 242579, 282455, 1212895, 4123843, 20619215]

約数ペア:

[(1, 20619215), (5, 4123843), (17, 1212895), (73, 282455), (85, 242579), (365, 56491), (1241, 16615), (3323, 6205)]