20418475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10607}}^1$

素因数の和:10635

約数の個数: 24

約数和(自身を含む): 31569408

約数和(自身を除く): 11150933

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10607, 53035, 74249, 116677, 265175, 371245, 583385, 816739, 1856225, 2916925, 4083695, 20418475]

約数ペア:

[(1, 20418475), (5, 4083695), (7, 2916925), (11, 1856225), (25, 816739), (35, 583385), (55, 371245), (77, 265175), (175, 116677), (275, 74249), (385, 53035), (1925, 10607)]