16945803

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 29352960

約数和(自身を除く): 12407157

約数列:

[1, 3, 7, 9, 21, 47, 59, 63, 97, 141, 177, 291, 329, 413, 423, 531, 679, 873, 987, 1239, 2037, 2773, 2961, 3717, 4559, 5723, 6111, 8319, 13677, 17169, 19411, 24957, 31913, 40061, 41031, 51507, 58233, 95739, 120183, 174699, 268981, 287217, 360549, 806943, 1882867, 2420829, 5648601, 16945803]

約数ペア:

[(1, 16945803), (3, 5648601), (7, 2420829), (9, 1882867), (21, 806943), (47, 360549), (59, 287217), (63, 268981), (97, 174699), (141, 120183), (177, 95739), (291, 58233), (329, 51507), (413, 41031), (423, 40061), (531, 31913), (679, 24957), (873, 19411), (987, 17169), (1239, 13677), (2037, 8319), (2773, 6111), (2961, 5723), (3717, 4559)]