25220691

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1361}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 38244960

約数和(自身を除く): 13024269

約数列:

[1, 3, 9, 29, 71, 87, 213, 261, 639, 1361, 2059, 4083, 6177, 12249, 18531, 39469, 96631, 118407, 289893, 355221, 869679, 2802299, 8406897, 25220691]

約数ペア:

[(1, 25220691), (3, 8406897), (9, 2802299), (29, 869679), (71, 355221), (87, 289893), (213, 118407), (261, 96631), (639, 39469), (1361, 18531), (2059, 12249), (4083, 6177)]