28931841

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{719}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 44478720

約数和(自身を除く): 15546879

約数列:

[1, 3, 9, 17, 51, 153, 263, 719, 789, 2157, 2367, 4471, 6471, 12223, 13413, 36669, 40239, 110007, 189097, 567291, 1701873, 3214649, 9643947, 28931841]

約数ペア:

[(1, 28931841), (3, 9643947), (9, 3214649), (17, 1701873), (51, 567291), (153, 189097), (263, 110007), (719, 40239), (789, 36669), (2157, 13413), (2367, 12223), (4471, 6471)]