644239212

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{391873}}^1$

素因数の和:392017

約数の個数: 24

約数和(自身を含む): 1514201136

約数和(自身を除く): 869961924

約数列:

[1, 2, 3, 4, 6, 12, 137, 274, 411, 548, 822, 1644, 391873, 783746, 1175619, 1567492, 2351238, 4702476, 53686601, 107373202, 161059803, 214746404, 322119606, 644239212]

約数ペア:

[(1, 644239212), (2, 322119606), (3, 214746404), (4, 161059803), (6, 107373202), (12, 53686601), (137, 4702476), (274, 2351238), (411, 1567492), (548, 1175619), (822, 783746), (1644, 391873)]