21744025

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 27989280

約数和(自身を除く): 6245255

約数列:

[1, 5, 25, 43, 113, 179, 215, 565, 895, 1075, 2825, 4475, 4859, 7697, 20227, 24295, 38485, 101135, 121475, 192425, 505675, 869761, 4348805, 21744025]

約数ペア:

[(1, 21744025), (5, 4348805), (25, 869761), (43, 505675), (113, 192425), (179, 121475), (215, 101135), (565, 38485), (895, 24295), (1075, 20227), (2825, 7697), (4475, 4859)]