28721967

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1\times {\mathrm{617}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 39156480

約数和(自身を除く): 10434513

約数列:

[1, 3, 59, 177, 263, 617, 789, 1851, 15517, 36403, 46551, 109209, 162271, 486813, 9573989, 28721967]

約数ペア:

[(1, 28721967), (3, 9573989), (59, 486813), (177, 162271), (263, 109209), (617, 46551), (789, 36403), (1851, 15517)]