16860978

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 21664782

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 139, 207, 278, 293, 414, 417, 586, 834, 879, 1251, 1758, 2502, 2637, 3197, 5274, 6394, 6739, 9591, 13478, 19182, 20217, 28773, 40434, 40727, 57546, 60651, 81454, 121302, 122181, 244362, 366543, 733086, 936721, 1873442, 2810163, 5620326, 8430489, 16860978]

約数ペア:

[(1, 16860978), (2, 8430489), (3, 5620326), (6, 2810163), (9, 1873442), (18, 936721), (23, 733086), (46, 366543), (69, 244362), (138, 122181), (139, 121302), (207, 81454), (278, 60651), (293, 57546), (414, 40727), (417, 40434), (586, 28773), (834, 20217), (879, 19182), (1251, 13478), (1758, 9591), (2502, 6739), (2637, 6394), (3197, 5274)]