20007871

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 22317120

約数和(自身を除く): 2309249

約数列:

[1, 13, 53, 71, 409, 689, 923, 3763, 5317, 21677, 29039, 48919, 281801, 377507, 1539067, 20007871]

約数ペア:

[(1, 20007871), (13, 1539067), (53, 377507), (71, 281801), (409, 48919), (689, 29039), (923, 21677), (3763, 5317)]