20831031

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7741}}^1$

素因数の和:7783

約数の個数: 24

約数和(自身を含む): 33817056

約数和(自身を除く): 12986025

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 7741, 23223, 69669, 100633, 178043, 301899, 534129, 905697, 1602387, 2314559, 6943677, 20831031]

約数ペア:

[(1, 20831031), (3, 6943677), (9, 2314559), (13, 1602387), (23, 905697), (39, 534129), (69, 301899), (117, 178043), (207, 100633), (299, 69669), (897, 23223), (2691, 7741)]