20210905052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388671251}}^1$

素因数の和:388671268

約数の個数: 12

約数和(自身を含む): 38089782696

約数和(自身を除く): 17878877644

約数列:

[1, 2, 4, 13, 26, 52, 388671251, 777342502, 1554685004, 5052726263, 10105452526, 20210905052]

約数ペア:

[(1, 20210905052), (2, 10105452526), (4, 5052726263), (13, 1554685004), (26, 777342502), (52, 388671251)]