19749509

素因数分解:

${\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{853}}^1$

素因数の和:1016

約数の個数: 12

約数和(自身を含む): 21566916

約数和(自身を除く): 1817407

約数列:

[1, 13, 137, 169, 853, 1781, 11089, 23153, 116861, 144157, 1519193, 19749509]

約数ペア:

[(1, 19749509), (13, 1519193), (137, 144157), (169, 116861), (853, 23153), (1781, 11089)]