20985924

素因数分解:

$2^2\times 3^1\times {\mathrm{163}}^1\times {\mathrm{10729}}^1$

素因数の和:10899

約数の個数: 24

約数和(自身を含む): 49272160

約数和(自身を除く): 28286236

約数列:

[1, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978, 1956, 10729, 21458, 32187, 42916, 64374, 128748, 1748827, 3497654, 5246481, 6995308, 10492962, 20985924]

約数ペア:

[(1, 20985924), (2, 10492962), (3, 6995308), (4, 5246481), (6, 3497654), (12, 1748827), (163, 128748), (326, 64374), (489, 42916), (652, 32187), (978, 21458), (1956, 10729)]