20481417

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 33825792

約数和(自身を除く): 13344375

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 127, 181, 297, 381, 543, 891, 1143, 1397, 1629, 1991, 3429, 4191, 4887, 5973, 10287, 12573, 14661, 17919, 22987, 37719, 53757, 68961, 113157, 161271, 206883, 252857, 620649, 758571, 1861947, 2275713, 6827139, 20481417]

約数ペア:

[(1, 20481417), (3, 6827139), (9, 2275713), (11, 1861947), (27, 758571), (33, 620649), (81, 252857), (99, 206883), (127, 161271), (181, 113157), (297, 68961), (381, 53757), (543, 37719), (891, 22987), (1143, 17919), (1397, 14661), (1629, 12573), (1991, 10287), (3429, 5973), (4191, 4887)]