21281608

素因数分解:

$2^3\times {\mathrm{379}}^1\times {\mathrm{7019}}^1$

素因数の和:7404

約数の個数: 16

約数和(自身を含む): 40014000

約数和(自身を除く): 18732392

約数列:

[1, 2, 4, 8, 379, 758, 1516, 3032, 7019, 14038, 28076, 56152, 2660201, 5320402, 10640804, 21281608]

約数ペア:

[(1, 21281608), (2, 10640804), (4, 5320402), (8, 2660201), (379, 56152), (758, 28076), (1516, 14038), (3032, 7019)]