18130721

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1009}}^1$

素因数の和:1184

約数の個数: 16

約数和(自身を含む): 22106880

約数和(自身を除く): 3976159

約数列:

[1, 7, 17, 119, 151, 1009, 1057, 2567, 7063, 17153, 17969, 120071, 152359, 1066513, 2590103, 18130721]

約数ペア:

[(1, 18130721), (7, 2590103), (17, 1066513), (119, 152359), (151, 120071), (1009, 17969), (1057, 17153), (2567, 7063)]