18985446

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1291}}^1$

素因数の和:1361

約数の個数: 48

約数和(自身を含む): 44341440

約数和(自身を除く): 25355994

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 43, 57, 86, 114, 129, 171, 258, 342, 387, 774, 817, 1291, 1634, 2451, 2582, 3873, 4902, 7353, 7746, 11619, 14706, 23238, 24529, 49058, 55513, 73587, 111026, 147174, 166539, 220761, 333078, 441522, 499617, 999234, 1054747, 2109494, 3164241, 6328482, 9492723, 18985446]

約数ペア:

[(1, 18985446), (2, 9492723), (3, 6328482), (6, 3164241), (9, 2109494), (18, 1054747), (19, 999234), (38, 499617), (43, 441522), (57, 333078), (86, 220761), (114, 166539), (129, 147174), (171, 111026), (258, 73587), (342, 55513), (387, 49058), (774, 24529), (817, 23238), (1291, 14706), (1634, 11619), (2451, 7746), (2582, 7353), (3873, 4902)]