18885748

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{16451}}^1$

素因数の和:16503

約数の個数: 24

約数和(自身を含む): 38695104

約数和(自身を除く): 19809356

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 16451, 32902, 65804, 115157, 230314, 460628, 674491, 1348982, 2697964, 4721437, 9442874, 18885748]

約数ペア:

[(1, 18885748), (2, 9442874), (4, 4721437), (7, 2697964), (14, 1348982), (28, 674491), (41, 460628), (82, 230314), (164, 115157), (287, 65804), (574, 32902), (1148, 16451)]