20394881

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 22822800

約数和(自身を除く): 2427919

約数列:

[1, 13, 37, 109, 389, 481, 1417, 4033, 5057, 14393, 42401, 52429, 187109, 551213, 1568837, 20394881]

約数ペア:

[(1, 20394881), (13, 1568837), (37, 551213), (109, 187109), (389, 52429), (481, 42401), (1417, 14393), (4033, 5057)]