21979329

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{5399}}^1$

素因数の和:5484

約数の個数: 16

約数和(自身を含む): 31104000

約数和(自身を除く): 9124671

約数列:

[1, 3, 23, 59, 69, 177, 1357, 4071, 5399, 16197, 124177, 318541, 372531, 955623, 7326443, 21979329]

約数ペア:

[(1, 21979329), (3, 7326443), (23, 955623), (59, 372531), (69, 318541), (177, 124177), (1357, 16197), (4071, 5399)]