19952543

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 22952160

約数和(自身を除く): 2999617

約数列:

[1, 13, 17, 137, 221, 659, 1781, 2329, 8567, 11203, 30277, 90283, 145639, 1173679, 1534811, 19952543]

約数ペア:

[(1, 19952543), (13, 1534811), (17, 1173679), (137, 145639), (221, 90283), (659, 30277), (1781, 11203), (2329, 8567)]