51321081

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{2749}}^1$

素因数の和:2893

約数の個数: 24

約数和(自身を含む): 80256000

約数和(自身を除く): 28934919

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 2667, 2749, 6223, 8247, 18669, 19243, 57729, 134701, 349123, 404103, 1047369, 2443861, 7331583, 17107027, 51321081]

約数ペア:

[(1, 51321081), (3, 17107027), (7, 7331583), (21, 2443861), (49, 1047369), (127, 404103), (147, 349123), (381, 134701), (889, 57729), (2667, 19243), (2749, 18669), (6223, 8247)]