21401138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5623}}^1$

素因数の和:5809

約数の個数: 16

約数和(自身を含む): 35228736

約数和(自身を除く): 13827598

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5623, 11246, 61853, 123706, 972779, 1945558, 10700569, 21401138]

約数ペア:

[(1, 21401138), (2, 10700569), (11, 1945558), (22, 972779), (173, 123706), (346, 61853), (1903, 11246), (3806, 5623)]