2563281

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 4642560

約数和(自身を除く): 2079279

約数列:

[1, 3, 7, 9, 21, 23, 29, 61, 63, 69, 87, 161, 183, 203, 207, 261, 427, 483, 549, 609, 667, 1281, 1403, 1449, 1769, 1827, 2001, 3843, 4209, 4669, 5307, 6003, 9821, 12383, 12627, 14007, 15921, 29463, 37149, 40687, 42021, 88389, 111447, 122061, 284809, 366183, 854427, 2563281]

約数ペア:

[(1, 2563281), (3, 854427), (7, 366183), (9, 284809), (21, 122061), (23, 111447), (29, 88389), (61, 42021), (63, 40687), (69, 37149), (87, 29463), (161, 15921), (183, 14007), (203, 12627), (207, 12383), (261, 9821), (427, 6003), (483, 5307), (549, 4669), (609, 4209), (667, 3843), (1281, 2001), (1403, 1827), (1449, 1769)]