20980533

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3457}}^1$

素因数の和:3501

約数の個数: 24

約数和(自身を含む): 33971392

約数和(自身を除く): 12990859

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3457, 6069, 10371, 24199, 58769, 72597, 176307, 411383, 999073, 1234149, 2997219, 6993511, 20980533]

約数ペア:

[(1, 20980533), (3, 6993511), (7, 2997219), (17, 1234149), (21, 999073), (51, 411383), (119, 176307), (289, 72597), (357, 58769), (867, 24199), (2023, 10371), (3457, 6069)]