20437485

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80147}}^1$

素因数の和:80172

約数の個数: 16

約数和(自身を含む): 34623936

約数和(自身を除く): 14186451

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80147, 240441, 400735, 1202205, 1362499, 4087497, 6812495, 20437485]

約数ペア:

[(1, 20437485), (3, 6812495), (5, 4087497), (15, 1362499), (17, 1202205), (51, 400735), (85, 240441), (255, 80147)]