21176320

素因数分解:

$2^{13}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:89

約数の個数: 112

約数和(自身を含む): 56619648

約数和(自身を除く): 35443328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 128, 160, 176, 188, 220, 235, 256, 320, 352, 376, 440, 470, 512, 517, 640, 704, 752, 880, 940, 1024, 1034, 1280, 1408, 1504, 1760, 1880, 2048, 2068, 2560, 2585, 2816, 3008, 3520, 3760, 4096, 4136, 5120, 5170, 5632, 6016, 7040, 7520, 8192, 8272, 10240, 10340, 11264, 12032, 14080, 15040, 16544, 20480, 20680, 22528, 24064, 28160, 30080, 33088, 40960, 41360, 45056, 48128, 56320, 60160, 66176, 82720, 90112, 96256, 112640, 120320, 132352, 165440, 192512, 225280, 240640, 264704, 330880, 385024, 450560, 481280, 529408, 661760, 962560, 1058816, 1323520, 1925120, 2117632, 2647040, 4235264, 5294080, 10588160, 21176320]

約数ペア:

[(1, 21176320), (2, 10588160), (4, 5294080), (5, 4235264), (8, 2647040), (10, 2117632), (11, 1925120), (16, 1323520), (20, 1058816), (22, 962560), (32, 661760), (40, 529408), (44, 481280), (47, 450560), (55, 385024), (64, 330880), (80, 264704), (88, 240640), (94, 225280), (110, 192512), (128, 165440), (160, 132352), (176, 120320), (188, 112640), (220, 96256), (235, 90112), (256, 82720), (320, 66176), (352, 60160), (376, 56320), (440, 48128), (470, 45056), (512, 41360), (517, 40960), (640, 33088), (704, 30080), (752, 28160), (880, 24064), (940, 22528), (1024, 20680), (1034, 20480), (1280, 16544), (1408, 15040), (1504, 14080), (1760, 12032), (1880, 11264), (2048, 10340), (2068, 10240), (2560, 8272), (2585, 8192), (2816, 7520), (3008, 7040), (3520, 6016), (3760, 5632), (4096, 5170), (4136, 5120)]