20650396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2857}}^1$

素因数の和:3013

約数の個数: 24

約数和(自身を含む): 39211760

約数和(自身を除く): 18561364

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2857, 3614, 5714, 7228, 11428, 37141, 74282, 148564, 397123, 794246, 1588492, 5162599, 10325198, 20650396]

約数ペア:

[(1, 20650396), (2, 10325198), (4, 5162599), (13, 1588492), (26, 794246), (52, 397123), (139, 148564), (278, 74282), (556, 37141), (1807, 11428), (2857, 7228), (3614, 5714)]