20909735

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54311}}^1$

素因数の和:54334

約数の個数: 16

約数和(自身を含む): 31283712

約数和(自身を除く): 10373977

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54311, 271555, 380177, 597421, 1900885, 2987105, 4181947, 20909735]

約数ペア:

[(1, 20909735), (5, 4181947), (7, 2987105), (11, 1900885), (35, 597421), (55, 380177), (77, 271555), (385, 54311)]