31640139

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{4027}}^1$

素因数の和:4136

約数の個数: 20

約数和(自身を含む): 47764024

約数和(自身を除く): 16123885

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2619, 4027, 7857, 12081, 36243, 108729, 326187, 390619, 1171857, 3515571, 10546713, 31640139]

約数ペア:

[(1, 31640139), (3, 10546713), (9, 3515571), (27, 1171857), (81, 390619), (97, 326187), (291, 108729), (873, 36243), (2619, 12081), (4027, 7857)]