28780031

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{3313}}^1$

素因数の和:3410

約数の個数: 16

約数和(自身を含む): 35313984

約数和(自身を除く): 6533953

約数列:

[1, 7, 17, 73, 119, 511, 1241, 3313, 8687, 23191, 56321, 241849, 394247, 1692943, 4111433, 28780031]

約数ペア:

[(1, 28780031), (7, 4111433), (17, 1692943), (73, 394247), (119, 241849), (511, 56321), (1241, 23191), (3313, 8687)]