21649797

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9739}}^1$

素因数の和:9777

約数の個数: 24

約数和(自身を含む): 35453600

約数和(自身を除く): 13803803

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9739, 29217, 87651, 126607, 185041, 379821, 555123, 1139463, 1665369, 2405533, 7216599, 21649797]

約数ペア:

[(1, 21649797), (3, 7216599), (9, 2405533), (13, 1665369), (19, 1139463), (39, 555123), (57, 379821), (117, 185041), (171, 126607), (247, 87651), (741, 29217), (2223, 9739)]