21221316

素因数分解:

$2^2\times 3^2\times {\mathrm{589481}}^1$

素因数の和:589491

約数の個数: 18

約数和(自身を含む): 53642862

約数和(自身を除く): 32421546

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 589481, 1178962, 1768443, 2357924, 3536886, 5305329, 7073772, 10610658, 21221316]

約数ペア:

[(1, 21221316), (2, 10610658), (3, 7073772), (4, 5305329), (6, 3536886), (9, 2357924), (12, 1768443), (18, 1178962), (36, 589481)]