20145489

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{677}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 33411840

約数和(自身を除く): 13266351

約数列:

[1, 3, 7, 13, 21, 39, 91, 109, 273, 327, 677, 763, 1417, 2031, 2289, 4251, 4739, 8801, 9919, 14217, 26403, 29757, 61607, 73793, 184821, 221379, 516551, 959309, 1549653, 2877927, 6715163, 20145489]

約数ペア:

[(1, 20145489), (3, 6715163), (7, 2877927), (13, 1549653), (21, 959309), (39, 516551), (91, 221379), (109, 184821), (273, 73793), (327, 61607), (677, 29757), (763, 26403), (1417, 14217), (2031, 9919), (2289, 8801), (4251, 4739)]