20918724

素因数分解:

$2^2\times 3^1\times {\mathrm{397}}^1\times {\mathrm{4391}}^1$

素因数の和:4795

約数の個数: 24

約数和(自身を含む): 48944448

約数和(自身を除く): 28025724

約数列:

[1, 2, 3, 4, 6, 12, 397, 794, 1191, 1588, 2382, 4391, 4764, 8782, 13173, 17564, 26346, 52692, 1743227, 3486454, 5229681, 6972908, 10459362, 20918724]

約数ペア:

[(1, 20918724), (2, 10459362), (3, 6972908), (4, 5229681), (6, 3486454), (12, 1743227), (397, 52692), (794, 26346), (1191, 17564), (1588, 13173), (2382, 8782), (4391, 4764)]