21456387

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8929}}^1$

素因数の和:9027

約数の個数: 16

約数和(自身を含む): 32148000

約数和(自身を除く): 10691613

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8929, 26787, 80361, 241083, 794681, 2384043, 7152129, 21456387]

約数ペア:

[(1, 21456387), (3, 7152129), (9, 2384043), (27, 794681), (89, 241083), (267, 80361), (801, 26787), (2403, 8929)]