21006016

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:521

約数の個数: 56

約数和(自身を含む): 45262800

約数和(自身を除く): 24256784

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 64, 68, 86, 136, 172, 272, 344, 449, 544, 688, 731, 898, 1088, 1376, 1462, 1796, 2752, 2924, 3592, 5848, 7184, 7633, 11696, 14368, 15266, 19307, 23392, 28736, 30532, 38614, 46784, 61064, 77228, 122128, 154456, 244256, 308912, 328219, 488512, 617824, 656438, 1235648, 1312876, 2625752, 5251504, 10503008, 21006016]

約数ペア:

[(1, 21006016), (2, 10503008), (4, 5251504), (8, 2625752), (16, 1312876), (17, 1235648), (32, 656438), (34, 617824), (43, 488512), (64, 328219), (68, 308912), (86, 244256), (136, 154456), (172, 122128), (272, 77228), (344, 61064), (449, 46784), (544, 38614), (688, 30532), (731, 28736), (898, 23392), (1088, 19307), (1376, 15266), (1462, 14368), (1796, 11696), (2752, 7633), (2924, 7184), (3592, 5848)]