18990262

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{503}}^1$

素因数の和:987

約数の個数: 16

約数和(自身を含む): 29272320

約数和(自身を除く): 10282058

約数列:

[1, 2, 43, 86, 439, 503, 878, 1006, 18877, 21629, 37754, 43258, 220817, 441634, 9495131, 18990262]

約数ペア:

[(1, 18990262), (2, 9495131), (43, 441634), (86, 220817), (439, 43258), (503, 37754), (878, 21629), (1006, 18877)]