21000576

素因数分解:

$2^7\times 3^1\times {\mathrm{17}}^1\times {\mathrm{3217}}^1$

素因数の和:3251

約数の個数: 64

約数和(自身を含む): 59082480

約数和(自身を除く): 38081904

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 64, 68, 96, 102, 128, 136, 192, 204, 272, 384, 408, 544, 816, 1088, 1632, 2176, 3217, 3264, 6434, 6528, 9651, 12868, 19302, 25736, 38604, 51472, 54689, 77208, 102944, 109378, 154416, 164067, 205888, 218756, 308832, 328134, 411776, 437512, 617664, 656268, 875024, 1235328, 1312536, 1750048, 2625072, 3500096, 5250144, 7000192, 10500288, 21000576]

約数ペア:

[(1, 21000576), (2, 10500288), (3, 7000192), (4, 5250144), (6, 3500096), (8, 2625072), (12, 1750048), (16, 1312536), (17, 1235328), (24, 875024), (32, 656268), (34, 617664), (48, 437512), (51, 411776), (64, 328134), (68, 308832), (96, 218756), (102, 205888), (128, 164067), (136, 154416), (192, 109378), (204, 102944), (272, 77208), (384, 54689), (408, 51472), (544, 38604), (816, 25736), (1088, 19302), (1632, 12868), (2176, 9651), (3217, 6528), (3264, 6434)]