31075821

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4789}}^1$

素因数の和:4905

約数の個数: 24

約数和(自身を含む): 51808640

約数和(自身を除く): 20732819

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 4789, 6489, 14367, 33523, 43101, 100569, 301707, 493267, 1479801, 3452869, 4439403, 10358607, 31075821]

約数ペア:

[(1, 31075821), (3, 10358607), (7, 4439403), (9, 3452869), (21, 1479801), (63, 493267), (103, 301707), (309, 100569), (721, 43101), (927, 33523), (2163, 14367), (4789, 6489)]