20698916

素因数分解:

$2^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{2377}}^1$

素因数の和:2699

約数の個数: 24

約数和(自身を含む): 41548416

約数和(自身を除く): 20849500

約数列:

[1, 2, 4, 7, 14, 28, 311, 622, 1244, 2177, 2377, 4354, 4754, 8708, 9508, 16639, 33278, 66556, 739247, 1478494, 2956988, 5174729, 10349458, 20698916]

約数ペア:

[(1, 20698916), (2, 10349458), (4, 5174729), (7, 2956988), (14, 1478494), (28, 739247), (311, 66556), (622, 33278), (1244, 16639), (2177, 9508), (2377, 8708), (4354, 4754)]