20513124

素因数分解:

$2^2\times 3^2\times {\mathrm{569809}}^1$

素因数の和:569819

約数の個数: 18

約数和(自身を含む): 51852710

約数和(自身を除く): 31339586

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569809, 1139618, 1709427, 2279236, 3418854, 5128281, 6837708, 10256562, 20513124]

約数ペア:

[(1, 20513124), (2, 10256562), (3, 6837708), (4, 5128281), (6, 3418854), (9, 2279236), (12, 1709427), (18, 1139618), (36, 569809)]