21669687

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{1583}}^1$

素因数の和:1621

約数の個数: 30

約数和(自身を含む): 35074512

約数和(自身を除く): 13404825

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 351, 507, 1053, 1521, 1583, 4563, 4749, 13689, 14247, 20579, 42741, 61737, 128223, 185211, 267527, 555633, 802581, 1666899, 2407743, 7223229, 21669687]

約数ペア:

[(1, 21669687), (3, 7223229), (9, 2407743), (13, 1666899), (27, 802581), (39, 555633), (81, 267527), (117, 185211), (169, 128223), (351, 61737), (507, 42741), (1053, 20579), (1521, 14247), (1583, 13689), (4563, 4749)]