21690806

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1867}}^1$

素因数の和:2063

約数の個数: 16

約数和(自身を含む): 33646416

約数和(自身を除く): 11955610

約数列:

[1, 2, 37, 74, 157, 314, 1867, 3734, 5809, 11618, 69079, 138158, 293119, 586238, 10845403, 21690806]

約数ペア:

[(1, 21690806), (2, 10845403), (37, 586238), (74, 293119), (157, 138158), (314, 69079), (1867, 11618), (3734, 5809)]