11971825

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{1657}}^1$

素因数の和:1701

約数の個数: 18

約数和(自身を含む): 15779186

約数和(自身を除く): 3807361

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 1657, 7225, 8285, 28169, 41425, 140845, 478873, 704225, 2394365, 11971825]

約数ペア:

[(1, 11971825), (5, 2394365), (17, 704225), (25, 478873), (85, 140845), (289, 41425), (425, 28169), (1445, 8285), (1657, 7225)]