19509217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12611}}^1$

素因数の和:12648

約数の個数: 16

約数和(自身を含む): 25425792

約数和(自身を除く): 5916575

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 12611, 88277, 163943, 214387, 1147601, 1500709, 2787031, 19509217]

約数ペア:

[(1, 19509217), (7, 2787031), (13, 1500709), (17, 1147601), (91, 214387), (119, 163943), (221, 88277), (1547, 12611)]