20290167

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 30090528

約数和(自身を除く): 9800361

約数列:

[1, 3, 9, 71, 113, 213, 281, 339, 639, 843, 1017, 2529, 8023, 19951, 24069, 31753, 59853, 72207, 95259, 179559, 285777, 2254463, 6763389, 20290167]

約数ペア:

[(1, 20290167), (3, 6763389), (9, 2254463), (71, 285777), (113, 179559), (213, 95259), (281, 72207), (339, 59853), (639, 31753), (843, 24069), (1017, 19951), (2529, 8023)]