20390458

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{48781}}^1$

素因数の和:48813

約数の個数: 16

約数和(自身を含む): 35123040

約数和(自身を除く): 14732582

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 48781, 97562, 536591, 926839, 1073182, 1853678, 10195229, 20390458]

約数ペア:

[(1, 20390458), (2, 10195229), (11, 1853678), (19, 1073182), (22, 926839), (38, 536591), (209, 97562), (418, 48781)]