20651565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2663}}^1$

素因数の和:2729

約数の個数: 32

約数和(自身を含む): 36827136

約数和(自身を除く): 16175571

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 2663, 7755, 7989, 13315, 29293, 39945, 87879, 125161, 146465, 375483, 439395, 625805, 1376771, 1877415, 4130313, 6883855, 20651565]

約数ペア:

[(1, 20651565), (3, 6883855), (5, 4130313), (11, 1877415), (15, 1376771), (33, 625805), (47, 439395), (55, 375483), (141, 146465), (165, 125161), (235, 87879), (517, 39945), (705, 29293), (1551, 13315), (2585, 7989), (2663, 7755)]