20717365

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3833}}^1$

素因数の和:3908

約数の個数: 16

約数和(自身を含む): 26500608

約数和(自身を除く): 5783243

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3833, 5405, 19165, 88159, 180151, 440795, 900755, 4143473, 20717365]

約数ペア:

[(1, 20717365), (5, 4143473), (23, 900755), (47, 440795), (115, 180151), (235, 88159), (1081, 19165), (3833, 5405)]