20517858

素因数分解:

$2^1\times 3^2\times {\mathrm{809}}^1\times {\mathrm{1409}}^1$

素因数の和:2226

約数の個数: 24

約数和(自身を含む): 44541900

約数和(自身を除く): 24024042

約数列:

[1, 2, 3, 6, 9, 18, 809, 1409, 1618, 2427, 2818, 4227, 4854, 7281, 8454, 12681, 14562, 25362, 1139881, 2279762, 3419643, 6839286, 10258929, 20517858]

約数ペア:

[(1, 20517858), (2, 10258929), (3, 6839286), (6, 3419643), (9, 2279762), (18, 1139881), (809, 25362), (1409, 14562), (1618, 12681), (2427, 8454), (2818, 7281), (4227, 4854)]