28180026

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1609}}^1$

素因数の和:1763

約数の個数: 48

約数和(自身を含む): 70324800

約数和(自身を除く): 42144774

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 139, 278, 417, 834, 973, 1251, 1609, 1946, 2502, 2919, 3218, 4827, 5838, 8757, 9654, 11263, 14481, 17514, 22526, 28962, 33789, 67578, 101367, 202734, 223651, 447302, 670953, 1341906, 1565557, 2012859, 3131114, 4025718, 4696671, 9393342, 14090013, 28180026]

約数ペア:

[(1, 28180026), (2, 14090013), (3, 9393342), (6, 4696671), (7, 4025718), (9, 3131114), (14, 2012859), (18, 1565557), (21, 1341906), (42, 670953), (63, 447302), (126, 223651), (139, 202734), (278, 101367), (417, 67578), (834, 33789), (973, 28962), (1251, 22526), (1609, 17514), (1946, 14481), (2502, 11263), (2919, 9654), (3218, 8757), (4827, 5838)]