20543859

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5527}}^1$

素因数の和:5599

約数の個数: 24

約数和(自身を含む): 34494720

約数和(自身を除く): 13950861

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5527, 16581, 38689, 49743, 116067, 326093, 348201, 978279, 2282651, 2934837, 6847953, 20543859]

約数ペア:

[(1, 20543859), (3, 6847953), (7, 2934837), (9, 2282651), (21, 978279), (59, 348201), (63, 326093), (177, 116067), (413, 49743), (531, 38689), (1239, 16581), (3717, 5527)]