20891948

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2339}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26282452

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 58, 77, 116, 154, 203, 308, 319, 406, 638, 812, 1276, 2233, 2339, 4466, 4678, 8932, 9356, 16373, 25729, 32746, 51458, 65492, 67831, 102916, 135662, 180103, 271324, 360206, 474817, 720412, 746141, 949634, 1492282, 1899268, 2984564, 5222987, 10445974, 20891948]

約数ペア:

[(1, 20891948), (2, 10445974), (4, 5222987), (7, 2984564), (11, 1899268), (14, 1492282), (22, 949634), (28, 746141), (29, 720412), (44, 474817), (58, 360206), (77, 271324), (116, 180103), (154, 135662), (203, 102916), (308, 67831), (319, 65492), (406, 51458), (638, 32746), (812, 25729), (1276, 16373), (2233, 9356), (2339, 8932), (4466, 4678)]