20797492548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{887}}^1\times {\mathrm{279131}}^1$

素因数の和:280032

約数の個数: 48

約数和(自身を含む): 55522704384

約数和(自身を除く): 34725211836

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 887, 1774, 2661, 3548, 5322, 6209, 10644, 12418, 18627, 24836, 37254, 74508, 279131, 558262, 837393, 1116524, 1674786, 1953917, 3349572, 3907834, 5861751, 7815668, 11723502, 23447004, 247589197, 495178394, 742767591, 990356788, 1485535182, 1733124379, 2971070364, 3466248758, 5199373137, 6932497516, 10398746274, 20797492548]

約数ペア:

[(1, 20797492548), (2, 10398746274), (3, 6932497516), (4, 5199373137), (6, 3466248758), (7, 2971070364), (12, 1733124379), (14, 1485535182), (21, 990356788), (28, 742767591), (42, 495178394), (84, 247589197), (887, 23447004), (1774, 11723502), (2661, 7815668), (3548, 5861751), (5322, 3907834), (6209, 3349572), (10644, 1953917), (12418, 1674786), (18627, 1116524), (24836, 837393), (37254, 558262), (74508, 279131)]