21161673

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13913}}^1$

素因数の和:13945

約数の個数: 18

約数和(自身を含む): 33101406

約数和(自身を除く): 11939733

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13913, 41739, 125217, 180869, 542607, 1627821, 2351297, 7053891, 21161673]

約数ペア:

[(1, 21161673), (3, 7053891), (9, 2351297), (13, 1627821), (39, 542607), (117, 180869), (169, 125217), (507, 41739), (1521, 13913)]