21119139

素因数分解:

$3^2\times {\mathrm{443}}^1\times {\mathrm{5297}}^1$

素因数の和:5746

約数の個数: 12

約数和(自身を含む): 30580056

約数和(自身を除く): 9460917

約数列:

[1, 3, 9, 443, 1329, 3987, 5297, 15891, 47673, 2346571, 7039713, 21119139]

約数ペア:

[(1, 21119139), (3, 7039713), (9, 2346571), (443, 47673), (1329, 15891), (3987, 5297)]