21720768

素因数分解:

$2^6\times 3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 112

約数和(自身を含む): 61447680

約数和(自身を除く): 39726912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 47, 48, 58, 64, 83, 87, 94, 96, 116, 141, 166, 174, 188, 192, 232, 249, 282, 332, 348, 376, 464, 498, 564, 664, 696, 752, 928, 996, 1128, 1328, 1363, 1392, 1504, 1856, 1992, 2256, 2407, 2656, 2726, 2784, 3008, 3901, 3984, 4089, 4512, 4814, 5312, 5452, 5568, 7221, 7802, 7968, 8178, 9024, 9628, 10904, 11703, 14442, 15604, 15936, 16356, 19256, 21808, 23406, 28884, 31208, 32712, 38512, 43616, 46812, 57768, 62416, 65424, 77024, 87232, 93624, 113129, 115536, 124832, 130848, 154048, 187248, 226258, 231072, 249664, 261696, 339387, 374496, 452516, 462144, 678774, 748992, 905032, 1357548, 1810064, 2715096, 3620128, 5430192, 7240256, 10860384, 21720768]

約数ペア:

[(1, 21720768), (2, 10860384), (3, 7240256), (4, 5430192), (6, 3620128), (8, 2715096), (12, 1810064), (16, 1357548), (24, 905032), (29, 748992), (32, 678774), (47, 462144), (48, 452516), (58, 374496), (64, 339387), (83, 261696), (87, 249664), (94, 231072), (96, 226258), (116, 187248), (141, 154048), (166, 130848), (174, 124832), (188, 115536), (192, 113129), (232, 93624), (249, 87232), (282, 77024), (332, 65424), (348, 62416), (376, 57768), (464, 46812), (498, 43616), (564, 38512), (664, 32712), (696, 31208), (752, 28884), (928, 23406), (996, 21808), (1128, 19256), (1328, 16356), (1363, 15936), (1392, 15604), (1504, 14442), (1856, 11703), (1992, 10904), (2256, 9628), (2407, 9024), (2656, 8178), (2726, 7968), (2784, 7802), (3008, 7221), (3901, 5568), (3984, 5452), (4089, 5312), (4512, 4814)]