20798412

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2371}}^1$

素因数の和:2438

約数の個数: 48

約数和(自身を含む): 52601472

約数和(自身を除く): 31803060

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 43, 51, 68, 86, 102, 129, 172, 204, 258, 516, 731, 1462, 2193, 2371, 2924, 4386, 4742, 7113, 8772, 9484, 14226, 28452, 40307, 80614, 101953, 120921, 161228, 203906, 241842, 305859, 407812, 483684, 611718, 1223436, 1733201, 3466402, 5199603, 6932804, 10399206, 20798412]

約数ペア:

[(1, 20798412), (2, 10399206), (3, 6932804), (4, 5199603), (6, 3466402), (12, 1733201), (17, 1223436), (34, 611718), (43, 483684), (51, 407812), (68, 305859), (86, 241842), (102, 203906), (129, 161228), (172, 120921), (204, 101953), (258, 80614), (516, 40307), (731, 28452), (1462, 14226), (2193, 9484), (2371, 8772), (2924, 7113), (4386, 4742)]