12943975

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{389}}^1$

素因数の和:432

約数の個数: 24

約数和(自身を含む): 17699760

約数和(自身を除く): 4755785

約数列:

[1, 5, 11, 25, 55, 121, 275, 389, 605, 1331, 1945, 3025, 4279, 6655, 9725, 21395, 33275, 47069, 106975, 235345, 517759, 1176725, 2588795, 12943975]

約数ペア:

[(1, 12943975), (5, 2588795), (11, 1176725), (25, 517759), (55, 235345), (121, 106975), (275, 47069), (389, 33275), (605, 21395), (1331, 9725), (1945, 6655), (3025, 4279)]