20722728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3907}}^1$

素因数の和:3946

約数の個数: 64

約数和(自身を含む): 59088960

約数和(自身を除く): 38366232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 3907, 5304, 7814, 11721, 15628, 23442, 31256, 46884, 50791, 66419, 93768, 101582, 132838, 152373, 199257, 203164, 265676, 304746, 398514, 406328, 531352, 609492, 797028, 863447, 1218984, 1594056, 1726894, 2590341, 3453788, 5180682, 6907576, 10361364, 20722728]

約数ペア:

[(1, 20722728), (2, 10361364), (3, 6907576), (4, 5180682), (6, 3453788), (8, 2590341), (12, 1726894), (13, 1594056), (17, 1218984), (24, 863447), (26, 797028), (34, 609492), (39, 531352), (51, 406328), (52, 398514), (68, 304746), (78, 265676), (102, 203164), (104, 199257), (136, 152373), (156, 132838), (204, 101582), (221, 93768), (312, 66419), (408, 50791), (442, 46884), (663, 31256), (884, 23442), (1326, 15628), (1768, 11721), (2652, 7814), (3907, 5304)]