51881319

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 90043200

約数和(自身を除く): 38161881

約数列:

[1, 3, 7, 9, 21, 29, 63, 73, 87, 203, 219, 261, 389, 511, 609, 657, 1167, 1533, 1827, 2117, 2723, 3501, 4599, 6351, 8169, 11281, 14819, 19053, 24507, 28397, 33843, 44457, 78967, 85191, 101529, 133371, 198779, 236901, 255573, 596337, 710703, 823513, 1789011, 2470539, 5764591, 7411617, 17293773, 51881319]

約数ペア:

[(1, 51881319), (3, 17293773), (7, 7411617), (9, 5764591), (21, 2470539), (29, 1789011), (63, 823513), (73, 710703), (87, 596337), (203, 255573), (219, 236901), (261, 198779), (389, 133371), (511, 101529), (609, 85191), (657, 78967), (1167, 44457), (1533, 33843), (1827, 28397), (2117, 24507), (2723, 19053), (3501, 14819), (4599, 11281), (6351, 8169)]