168100821

素因数分解:

$3^2\times 7^2\times {\mathrm{381181}}^1$

素因数の和:381201

約数の個数: 18

約数和(自身を含む): 282455862

約数和(自身を除く): 114355041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 381181, 1143543, 2668267, 3430629, 8004801, 18677869, 24014403, 56033607, 168100821]

約数ペア:

[(1, 168100821), (3, 56033607), (7, 24014403), (9, 18677869), (21, 8004801), (49, 3430629), (63, 2668267), (147, 1143543), (441, 381181)]