1990291221

素因数分解:

$3^2\times {\mathrm{941}}^1\times {\mathrm{235009}}^1$

素因数の和:235956

約数の個数: 12

約数和(自身を含む): 2877932460

約数和(自身を除く): 887641239

約数列:

[1, 3, 9, 941, 2823, 8469, 235009, 705027, 2115081, 221143469, 663430407, 1990291221]

約数ペア:

[(1, 1990291221), (3, 663430407), (9, 221143469), (941, 2115081), (2823, 705027), (8469, 235009)]