21481759

素因数分解:

${\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{1609}}^1$

素因数の和:1714

約数の個数: 12

約数和(自身を含む): 23570400

約数和(自身を除く): 2088641

約数列:

[1, 13, 79, 169, 1027, 1609, 13351, 20917, 127111, 271921, 1652443, 21481759]

約数ペア:

[(1, 21481759), (13, 1652443), (79, 271921), (169, 127111), (1027, 20917), (1609, 13351)]