19901769

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{677}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 27336960

約数和(自身を除く): 7435191

約数列:

[1, 3, 41, 123, 239, 677, 717, 2031, 9799, 27757, 29397, 83271, 161803, 485409, 6633923, 19901769]

約数ペア:

[(1, 19901769), (3, 6633923), (41, 485409), (123, 161803), (239, 83271), (677, 29397), (717, 27757), (2031, 9799)]