20464557

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1117}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 28334592

約数和(自身を除く): 7870035

約数列:

[1, 3, 31, 93, 197, 591, 1117, 3351, 6107, 18321, 34627, 103881, 220049, 660147, 6821519, 20464557]

約数ペア:

[(1, 20464557), (3, 6821519), (31, 660147), (93, 220049), (197, 103881), (591, 34627), (1117, 18321), (3351, 6107)]