20450872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{196643}}^1$

素因数の和:196662

約数の個数: 16

約数和(自身を含む): 41295240

約数和(自身を除く): 20844368

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 196643, 393286, 786572, 1573144, 2556359, 5112718, 10225436, 20450872]

約数ペア:

[(1, 20450872), (2, 10225436), (4, 5112718), (8, 2556359), (13, 1573144), (26, 786572), (52, 393286), (104, 196643)]