21527208

素因数分解:

$2^3\times 3^4\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 60984000

約数和(自身を除く): 39456792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 139, 162, 216, 239, 278, 324, 417, 478, 556, 648, 717, 834, 956, 1112, 1251, 1434, 1668, 1912, 2151, 2502, 2868, 3336, 3753, 4302, 5004, 5736, 6453, 7506, 8604, 10008, 11259, 12906, 15012, 17208, 19359, 22518, 25812, 30024, 33221, 38718, 45036, 51624, 66442, 77436, 90072, 99663, 132884, 154872, 199326, 265768, 298989, 398652, 597978, 797304, 896967, 1195956, 1793934, 2391912, 2690901, 3587868, 5381802, 7175736, 10763604, 21527208]

約数ペア:

[(1, 21527208), (2, 10763604), (3, 7175736), (4, 5381802), (6, 3587868), (8, 2690901), (9, 2391912), (12, 1793934), (18, 1195956), (24, 896967), (27, 797304), (36, 597978), (54, 398652), (72, 298989), (81, 265768), (108, 199326), (139, 154872), (162, 132884), (216, 99663), (239, 90072), (278, 77436), (324, 66442), (417, 51624), (478, 45036), (556, 38718), (648, 33221), (717, 30024), (834, 25812), (956, 22518), (1112, 19359), (1251, 17208), (1434, 15012), (1668, 12906), (1912, 11259), (2151, 10008), (2502, 8604), (2868, 7506), (3336, 6453), (3753, 5736), (4302, 5004)]