20215611

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13291}}^1$

素因数の和:13323

約数の個数: 18

約数和(自身を含む): 31621668

約数和(自身を除く): 11406057

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13291, 39873, 119619, 172783, 518349, 1555047, 2246179, 6738537, 20215611]

約数ペア:

[(1, 20215611), (3, 6738537), (9, 2246179), (13, 1555047), (39, 518349), (117, 172783), (169, 119619), (507, 39873), (1521, 13291)]