21068295

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26501}}^1$

素因数の和:26562

約数の個数: 16

約数和(自身を含む): 34346592

約数和(自身を除く): 13278297

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 26501, 79503, 132505, 397515, 1404553, 4213659, 7022765, 21068295]

約数ペア:

[(1, 21068295), (3, 7022765), (5, 4213659), (15, 1404553), (53, 397515), (159, 132505), (265, 79503), (795, 26501)]