20856849

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12437}}^1$

素因数の和:12496

約数の個数: 16

約数和(自身を含む): 30647232

約数和(自身を除く): 9790383

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12437, 37311, 161681, 485043, 534791, 1604373, 6952283, 20856849]

約数ペア:

[(1, 20856849), (3, 6952283), (13, 1604373), (39, 534791), (43, 485043), (129, 161681), (559, 37311), (1677, 12437)]