20907425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10861}}^1$

素因数の和:10889

約数の個数: 24

約数和(自身を含む): 32325312

約数和(自身を除く): 11417887

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10861, 54305, 76027, 119471, 271525, 380135, 597355, 836297, 1900675, 2986775, 4181485, 20907425]

約数ペア:

[(1, 20907425), (5, 4181485), (7, 2986775), (11, 1900675), (25, 836297), (35, 597355), (55, 380135), (77, 271525), (175, 119471), (275, 76027), (385, 54305), (1925, 10861)]