20565723878

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{27716609}}^1$

素因数の和:27716671

約数の個数: 16

約数和(自身を含む): 35920726560

約数和(自身を除く): 15355002682

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 27716609, 55433218, 194016263, 388032526, 1468980277, 2937960554, 10282861939, 20565723878]

約数ペア:

[(1, 20565723878), (2, 10282861939), (7, 2937960554), (14, 1468980277), (53, 388032526), (106, 194016263), (371, 55433218), (742, 27716609)]