20611665

素因数分解:

$3^4\times 5^1\times {\mathrm{50893}}^1$

素因数の和:50910

約数の個数: 20

約数和(自身を含む): 36949044

約数和(自身を除く): 16337379

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50893, 152679, 254465, 458037, 763395, 1374111, 2290185, 4122333, 6870555, 20611665]

約数ペア:

[(1, 20611665), (3, 6870555), (5, 4122333), (9, 2290185), (15, 1374111), (27, 763395), (45, 458037), (81, 254465), (135, 152679), (405, 50893)]