20168972

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{523}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 36621312

約数和(自身を除く): 16452340

約数列:

[1, 2, 4, 31, 62, 124, 311, 523, 622, 1046, 1244, 2092, 9641, 16213, 19282, 32426, 38564, 64852, 162653, 325306, 650612, 5042243, 10084486, 20168972]

約数ペア:

[(1, 20168972), (2, 10084486), (4, 5042243), (31, 650612), (62, 325306), (124, 162653), (311, 64852), (523, 38564), (622, 32426), (1046, 19282), (1244, 16213), (2092, 9641)]