12911075

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{1787}}^1$

素因数の和:1831

約数の個数: 18

約数和(自身を含む): 17016396

約数和(自身を除く): 4105321

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 1787, 7225, 8935, 30379, 44675, 151895, 516443, 759475, 2582215, 12911075]

約数ペア:

[(1, 12911075), (5, 2582215), (17, 759475), (25, 516443), (85, 151895), (289, 44675), (425, 30379), (1445, 8935), (1787, 7225)]