20379291

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{661}}^1$

素因数の和:946

約数の個数: 16

約数和(自身を含む): 27962880

約数和(自身を除く): 7583589

約数列:

[1, 3, 43, 129, 239, 661, 717, 1983, 10277, 28423, 30831, 85269, 157979, 473937, 6793097, 20379291]

約数ペア:

[(1, 20379291), (3, 6793097), (43, 473937), (129, 157979), (239, 85269), (661, 30831), (717, 28423), (1983, 10277)]