21439998

素因数分解:

$2^1\times 3^3\times {\mathrm{397037}}^1$

素因数の和:397048

約数の個数: 16

約数和(自身を含む): 47644560

約数和(自身を除く): 26204562

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 397037, 794074, 1191111, 2382222, 3573333, 7146666, 10719999, 21439998]

約数ペア:

[(1, 21439998), (2, 10719999), (3, 7146666), (6, 3573333), (9, 2382222), (18, 1191111), (27, 794074), (54, 397037)]