21382625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15551}}^1$

素因数の和:15577

約数の個数: 16

約数和(自身を含む): 29113344

約数和(自身を除く): 7730719

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15551, 77755, 171061, 388775, 855305, 1943875, 4276525, 21382625]

約数ペア:

[(1, 21382625), (5, 4276525), (11, 1943875), (25, 855305), (55, 388775), (125, 171061), (275, 77755), (1375, 15551)]