20625385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12097}}^1$

素因数の和:12144

約数の個数: 16

約数和(自身を含む): 27873792

約数和(自身を除く): 7248407

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12097, 60485, 133067, 375007, 665335, 1875035, 4125077, 20625385]

約数ペア:

[(1, 20625385), (5, 4125077), (11, 1875035), (31, 665335), (55, 375007), (155, 133067), (341, 60485), (1705, 12097)]