21016806

素因数分解:

$2^1\times 3^1\times {\mathrm{443}}^1\times {\mathrm{7907}}^1$

素因数の和:8355

約数の個数: 16

約数和(自身を含む): 42133824

約数和(自身を除く): 21117018

約数列:

[1, 2, 3, 6, 443, 886, 1329, 2658, 7907, 15814, 23721, 47442, 3502801, 7005602, 10508403, 21016806]

約数ペア:

[(1, 21016806), (2, 10508403), (3, 7005602), (6, 3502801), (443, 47442), (886, 23721), (1329, 15814), (2658, 7907)]