20787455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1327}}^1$

素因数の和:1586

約数の個数: 16

約数和(自身を含む): 26995584

約数和(自身を除く): 6208129

約数列:

[1, 5, 13, 65, 241, 1205, 1327, 3133, 6635, 15665, 17251, 86255, 319807, 1599035, 4157491, 20787455]

約数ペア:

[(1, 20787455), (5, 4157491), (13, 1599035), (65, 319807), (241, 86255), (1205, 17251), (1327, 15665), (3133, 6635)]