22217975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 29946000

約数和(自身を除く): 7728025

約数列:

[1, 5, 13, 25, 65, 137, 325, 499, 685, 1781, 2495, 3425, 6487, 8905, 12475, 32435, 44525, 68363, 162175, 341815, 888719, 1709075, 4443595, 22217975]

約数ペア:

[(1, 22217975), (5, 4443595), (13, 1709075), (25, 888719), (65, 341815), (137, 162175), (325, 68363), (499, 44525), (685, 32435), (1781, 12475), (2495, 8905), (3425, 6487)]