21326417

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22907}}^1$

素因数の和:22940

約数の個数: 12

約数和(自身を含む): 26115120

約数和(自身を除く): 4788703

約数列:

[1, 7, 19, 49, 133, 931, 22907, 160349, 435233, 1122443, 3046631, 21326417]

約数ペア:

[(1, 21326417), (7, 3046631), (19, 1122443), (49, 435233), (133, 160349), (931, 22907)]