21449718

素因数分解:

$2^1\times 3^3\times {\mathrm{397217}}^1$

素因数の和:397228

約数の個数: 16

約数和(自身を含む): 47666160

約数和(自身を除く): 26216442

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 397217, 794434, 1191651, 2383302, 3574953, 7149906, 10724859, 21449718]

約数ペア:

[(1, 21449718), (2, 10724859), (3, 7149906), (6, 3574953), (9, 2383302), (18, 1191651), (27, 794434), (54, 397217)]