20789929905

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{70067}}^1$

素因数の和:70357

約数の個数: 32

約数和(自身を含む): 33740264448

約数和(自身を除く): 12950334543

約数列:

[1, 3, 5, 15, 131, 151, 393, 453, 655, 755, 1965, 2265, 19781, 59343, 70067, 98905, 210201, 296715, 350335, 1051005, 9178777, 10580117, 27536331, 31740351, 45893885, 52900585, 137681655, 158701755, 1385995327, 4157985981, 6929976635, 20789929905]

約数ペア:

[(1, 20789929905), (3, 6929976635), (5, 4157985981), (15, 1385995327), (131, 158701755), (151, 137681655), (393, 52900585), (453, 45893885), (655, 31740351), (755, 27536331), (1965, 10580117), (2265, 9178777), (19781, 1051005), (59343, 350335), (70067, 296715), (98905, 210201)]