21706417

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 23846400

約数和(自身を除く): 2139983

約数列:

[1, 19, 31, 137, 269, 589, 2603, 4247, 5111, 8339, 36853, 80693, 158441, 700207, 1142443, 21706417]

約数ペア:

[(1, 21706417), (19, 1142443), (31, 700207), (137, 158441), (269, 80693), (589, 36853), (2603, 8339), (4247, 5111)]