20972645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1801}}^1$

素因数の和:1960

約数の個数: 16

約数和(自身を含む): 26857008

約数和(自身を除く): 5884363

約数列:

[1, 5, 17, 85, 137, 685, 1801, 2329, 9005, 11645, 30617, 153085, 246737, 1233685, 4194529, 20972645]

約数ペア:

[(1, 20972645), (5, 4194529), (17, 1233685), (85, 246737), (137, 153085), (685, 30617), (1801, 11645), (2329, 9005)]