21186704

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:648

約数の個数: 80

約数和(自身を含む): 53032320

約数和(自身を除く): 31845616

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 29, 44, 56, 58, 77, 88, 112, 116, 154, 176, 203, 232, 308, 319, 406, 464, 593, 616, 638, 812, 1186, 1232, 1276, 1624, 2233, 2372, 2552, 3248, 4151, 4466, 4744, 5104, 6523, 8302, 8932, 9488, 13046, 16604, 17197, 17864, 26092, 33208, 34394, 35728, 45661, 52184, 66416, 68788, 91322, 104368, 120379, 137576, 182644, 189167, 240758, 275152, 365288, 378334, 481516, 730576, 756668, 963032, 1324169, 1513336, 1926064, 2648338, 3026672, 5296676, 10593352, 21186704]

約数ペア:

[(1, 21186704), (2, 10593352), (4, 5296676), (7, 3026672), (8, 2648338), (11, 1926064), (14, 1513336), (16, 1324169), (22, 963032), (28, 756668), (29, 730576), (44, 481516), (56, 378334), (58, 365288), (77, 275152), (88, 240758), (112, 189167), (116, 182644), (154, 137576), (176, 120379), (203, 104368), (232, 91322), (308, 68788), (319, 66416), (406, 52184), (464, 45661), (593, 35728), (616, 34394), (638, 33208), (812, 26092), (1186, 17864), (1232, 17197), (1276, 16604), (1624, 13046), (2233, 9488), (2372, 8932), (2552, 8302), (3248, 6523), (4151, 5104), (4466, 4744)]