21005316

素因数分解:

$2^2\times 3^2\times {\mathrm{583481}}^1$

素因数の和:583491

約数の個数: 18

約数和(自身を含む): 53096862

約数和(自身を除く): 32091546

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 583481, 1166962, 1750443, 2333924, 3500886, 5251329, 7001772, 10502658, 21005316]

約数ペア:

[(1, 21005316), (2, 10502658), (3, 7001772), (4, 5251329), (6, 3500886), (9, 2333924), (12, 1750443), (18, 1166962), (36, 583481)]