391738221

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{28393}}^1$

素因数の和:28482

約数の個数: 32

約数和(自身を含む): 672369920

約数和(自身を除く): 280631699

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599, 13797, 28393, 85179, 198751, 255537, 596253, 766611, 1788759, 2072689, 5366277, 6218067, 14508823, 18654201, 43526469, 55962603, 130579407, 391738221]

約数ペア:

[(1, 391738221), (3, 130579407), (7, 55962603), (9, 43526469), (21, 18654201), (27, 14508823), (63, 6218067), (73, 5366277), (189, 2072689), (219, 1788759), (511, 766611), (657, 596253), (1533, 255537), (1971, 198751), (4599, 85179), (13797, 28393)]