20833316

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5431}}^1$

素因数の和:5579

約数の個数: 24

約数和(自身を含む): 41978496

約数和(自身を除く): 21145180

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5431, 10862, 21724, 38017, 76034, 152068, 744047, 1488094, 2976188, 5208329, 10416658, 20833316]

約数ペア:

[(1, 20833316), (2, 10416658), (4, 5208329), (7, 2976188), (14, 1488094), (28, 744047), (137, 152068), (274, 76034), (548, 38017), (959, 21724), (1918, 10862), (3836, 5431)]