20656445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{3329}}^1$

素因数の和:3424

約数の個数: 16

約数和(自身を含む): 26613360

約数和(自身を除く): 5956915

約数列:

[1, 5, 17, 73, 85, 365, 1241, 3329, 6205, 16645, 56593, 243017, 282965, 1215085, 4131289, 20656445]

約数ペア:

[(1, 20656445), (5, 4131289), (17, 1215085), (73, 282965), (85, 243017), (365, 56593), (1241, 16645), (3329, 6205)]