21099189

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{739}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 29173760

約数和(自身を除く): 8074571

約数列:

[1, 3, 31, 93, 307, 739, 921, 2217, 9517, 22909, 28551, 68727, 226873, 680619, 7033063, 21099189]

約数ペア:

[(1, 21099189), (3, 7033063), (31, 680619), (93, 226873), (307, 68727), (739, 28551), (921, 22909), (2217, 9517)]