18283705

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 24667776

約数和(自身を除く): 6384071

約数列:

[1, 5, 11, 47, 55, 121, 235, 517, 605, 643, 2585, 3215, 5687, 7073, 28435, 30221, 35365, 77803, 151105, 332431, 389015, 1662155, 3656741, 18283705]

約数ペア:

[(1, 18283705), (5, 3656741), (11, 1662155), (47, 389015), (55, 332431), (121, 151105), (235, 77803), (517, 35365), (605, 30221), (643, 28435), (2585, 7073), (3215, 5687)]