20836197

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4217}}^1$

素因数の和:4290

約数の個数: 20

約数和(自身を含む): 31643436

約数和(自身を除く): 10807239

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4217, 4941, 12651, 37953, 113859, 257237, 341577, 771711, 2315133, 6945399, 20836197]

約数ペア:

[(1, 20836197), (3, 6945399), (9, 2315133), (27, 771711), (61, 341577), (81, 257237), (183, 113859), (549, 37953), (1647, 12651), (4217, 4941)]