20850505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16883}}^1$

素因数の和:16920

約数の個数: 16

約数和(自身を含む): 28365120

約数和(自身を除く): 7514615

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16883, 84415, 219479, 320777, 1097395, 1603885, 4170101, 20850505]

約数ペア:

[(1, 20850505), (5, 4170101), (13, 1603885), (19, 1097395), (65, 320777), (95, 219479), (247, 84415), (1235, 16883)]