28216413

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{827}}^1$

素因数の和:1073

約数の個数: 24

約数和(自身を含む): 43400448

約数和(自身を除く): 15184035

約数列:

[1, 3, 9, 17, 51, 153, 223, 669, 827, 2007, 2481, 3791, 7443, 11373, 14059, 34119, 42177, 126531, 184421, 553263, 1659789, 3135157, 9405471, 28216413]

約数ペア:

[(1, 28216413), (3, 9405471), (9, 3135157), (17, 1659789), (51, 553263), (153, 184421), (223, 126531), (669, 42177), (827, 34119), (2007, 14059), (2481, 11373), (3791, 7443)]