388534239

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{208553}}^1$

素因数の和:208588

約数の個数: 20

約数和(自身を含む): 605640816

約数和(自身を除く): 217106577

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 208553, 625659, 1876977, 4796719, 5630931, 14390157, 16892793, 43170471, 129511413, 388534239]

約数ペア:

[(1, 388534239), (3, 129511413), (9, 43170471), (23, 16892793), (27, 14390157), (69, 5630931), (81, 4796719), (207, 1876977), (621, 625659), (1863, 208553)]