21145266

素因数分解:

$2^1\times 3^3\times {\mathrm{391579}}^1$

素因数の和:391590

約数の個数: 16

約数和(自身を含む): 46989600

約数和(自身を除く): 25844334

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 391579, 783158, 1174737, 2349474, 3524211, 7048422, 10572633, 21145266]

約数ペア:

[(1, 21145266), (2, 10572633), (3, 7048422), (6, 3524211), (9, 2349474), (18, 1174737), (27, 783158), (54, 391579)]