20197754872

素因数分解:

$2^3\times {\mathrm{2129}}^1\times {\mathrm{1185871}}^1$

素因数の和:1188006

約数の個数: 16

約数和(自身を含む): 37888610400

約数和(自身を除く): 17690855528

約数列:

[1, 2, 4, 8, 2129, 4258, 8516, 17032, 1185871, 2371742, 4743484, 9486968, 2524719359, 5049438718, 10098877436, 20197754872]

約数ペア:

[(1, 20197754872), (2, 10098877436), (4, 5049438718), (8, 2524719359), (2129, 9486968), (4258, 4743484), (8516, 2371742), (17032, 1185871)]