20738165

素因数分解:

$5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{2543}}^1$

素因数の和:2788

約数の個数: 16

約数和(自身を含む): 28574208

約数和(自身を除く): 7836043

約数列:

[1, 5, 7, 35, 233, 1165, 1631, 2543, 8155, 12715, 17801, 89005, 592519, 2962595, 4147633, 20738165]

約数ペア:

[(1, 20738165), (5, 4147633), (7, 2962595), (35, 592519), (233, 89005), (1165, 17801), (1631, 12715), (2543, 8155)]