20909319

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1613}}^1$

素因数の和:1794

約数の個数: 16

約数和(自身を含む): 29052000

約数和(自身を除く): 8142681

約数列:

[1, 3, 29, 87, 149, 447, 1613, 4321, 4839, 12963, 46777, 140331, 240337, 721011, 6969773, 20909319]

約数ペア:

[(1, 20909319), (3, 6969773), (29, 721011), (87, 240337), (149, 140331), (447, 46777), (1613, 12963), (4321, 4839)]