13172225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2561

約数の個数: 24

約数和(自身を含む): 18763680

約数和(自身を除く): 5591455

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 2521, 5225, 12605, 27731, 47899, 63025, 138655, 239495, 526889, 693275, 1197475, 2634445, 13172225]

約数ペア:

[(1, 13172225), (5, 2634445), (11, 1197475), (19, 693275), (25, 526889), (55, 239495), (95, 138655), (209, 63025), (275, 47899), (475, 27731), (1045, 12605), (2521, 5225)]