21620880723

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{102911}}^1\times {\mathrm{5387}}^1$

素因数の和:108314

約数の個数: 16

約数和(自身を含む): 31051431936

約数和(自身を除く): 9430551213

約数列:

[1, 3, 13, 39, 5387, 16161, 70031, 102911, 210093, 308733, 1337843, 4013529, 554381557, 1663144671, 7206960241, 21620880723]

約数ペア:

[(1, 21620880723), (3, 7206960241), (13, 1663144671), (39, 554381557), (5387, 4013529), (16161, 1337843), (70031, 308733), (102911, 210093)]