20200239

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 31088640

約数和(自身を除く): 10888401

約数列:

[1, 3, 9, 27, 43, 127, 129, 137, 381, 387, 411, 1143, 1161, 1233, 3429, 3699, 5461, 5891, 16383, 17399, 17673, 49149, 52197, 53019, 147447, 156591, 159057, 469773, 748157, 2244471, 6733413, 20200239]

約数ペア:

[(1, 20200239), (3, 6733413), (9, 2244471), (27, 748157), (43, 469773), (127, 159057), (129, 156591), (137, 147447), (381, 53019), (387, 52197), (411, 49149), (1143, 17673), (1161, 17399), (1233, 16383), (3429, 5891), (3699, 5461)]