19911824

素因数分解:

$2^4\times {\mathrm{617}}^1\times {\mathrm{2017}}^1$

素因数の和:2642

約数の個数: 20

約数和(自身を含む): 38660844

約数和(自身を除く): 18749020

約数列:

[1, 2, 4, 8, 16, 617, 1234, 2017, 2468, 4034, 4936, 8068, 9872, 16136, 32272, 1244489, 2488978, 4977956, 9955912, 19911824]

約数ペア:

[(1, 19911824), (2, 9955912), (4, 4977956), (8, 2488978), (16, 1244489), (617, 32272), (1234, 16136), (2017, 9872), (2468, 8068), (4034, 4936)]