19940242

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 35164800

約数和(自身を除く): 15224558

約数列:

[1, 2, 7, 14, 73, 109, 146, 179, 218, 358, 511, 763, 1022, 1253, 1526, 2506, 7957, 13067, 15914, 19511, 26134, 39022, 55699, 91469, 111398, 136577, 182938, 273154, 1424303, 2848606, 9970121, 19940242]

約数ペア:

[(1, 19940242), (2, 9970121), (7, 2848606), (14, 1424303), (73, 273154), (109, 182938), (146, 136577), (179, 111398), (218, 91469), (358, 55699), (511, 39022), (763, 26134), (1022, 19511), (1253, 15914), (1526, 13067), (2506, 7957)]