20181668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388109}}^1$

素因数の和:388126

約数の個数: 12

約数和(自身を含む): 38034780

約数和(自身を除く): 17853112

約数列:

[1, 2, 4, 13, 26, 52, 388109, 776218, 1552436, 5045417, 10090834, 20181668]

約数ペア:

[(1, 20181668), (2, 10090834), (4, 5045417), (13, 1552436), (26, 776218), (52, 388109)]