21064172545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4836779}}^1$

素因数の和:4836864

約数の個数: 16

約数和(自身を含む): 27627687360

約数和(自身を除く): 6563514815

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 4836779, 24183895, 62878127, 314390635, 324064193, 1620320965, 4212834509, 21064172545]

約数ペア:

[(1, 21064172545), (5, 4212834509), (13, 1620320965), (65, 324064193), (67, 314390635), (335, 62878127), (871, 24183895), (4355, 4836779)]