21437864

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 27084376

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 53, 56, 62, 106, 124, 212, 217, 233, 248, 371, 424, 434, 466, 742, 868, 932, 1484, 1631, 1643, 1736, 1864, 2968, 3262, 3286, 6524, 6572, 7223, 11501, 12349, 13048, 13144, 14446, 23002, 24698, 28892, 46004, 49396, 50561, 57784, 86443, 92008, 98792, 101122, 172886, 202244, 345772, 382819, 404488, 691544, 765638, 1531276, 2679733, 3062552, 5359466, 10718932, 21437864]

約数ペア:

[(1, 21437864), (2, 10718932), (4, 5359466), (7, 3062552), (8, 2679733), (14, 1531276), (28, 765638), (31, 691544), (53, 404488), (56, 382819), (62, 345772), (106, 202244), (124, 172886), (212, 101122), (217, 98792), (233, 92008), (248, 86443), (371, 57784), (424, 50561), (434, 49396), (466, 46004), (742, 28892), (868, 24698), (932, 23002), (1484, 14446), (1631, 13144), (1643, 13048), (1736, 12349), (1864, 11501), (2968, 7223), (3262, 6572), (3286, 6524)]