20980754

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{10459}}^1$

素因数の和:10537

約数の個数: 16

約数和(自身を含む): 33890400

約数和(自身を除く): 12909646

約数列:

[1, 2, 17, 34, 59, 118, 1003, 2006, 10459, 20918, 177803, 355606, 617081, 1234162, 10490377, 20980754]

約数ペア:

[(1, 20980754), (2, 10490377), (17, 1234162), (34, 617081), (59, 355606), (118, 177803), (1003, 20918), (2006, 10459)]