20377292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12641}}^1$

素因数の和:12689

約数の個数: 24

約数和(自身を含む): 39645312

約数和(自身を除く): 19268020

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12641, 25282, 50564, 164333, 328666, 391871, 657332, 783742, 1567484, 5094323, 10188646, 20377292]

約数ペア:

[(1, 20377292), (2, 10188646), (4, 5094323), (13, 1567484), (26, 783742), (31, 657332), (52, 391871), (62, 328666), (124, 164333), (403, 50564), (806, 25282), (1612, 12641)]