21108984

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2333}}^1$

素因数の和:2384

約数の個数: 64

約数和(自身を含む): 58816800

約数和(自身を除く): 37707816

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 39, 52, 58, 78, 87, 104, 116, 156, 174, 232, 312, 348, 377, 696, 754, 1131, 1508, 2262, 2333, 3016, 4524, 4666, 6999, 9048, 9332, 13998, 18664, 27996, 30329, 55992, 60658, 67657, 90987, 121316, 135314, 181974, 202971, 242632, 270628, 363948, 405942, 541256, 727896, 811884, 879541, 1623768, 1759082, 2638623, 3518164, 5277246, 7036328, 10554492, 21108984]

約数ペア:

[(1, 21108984), (2, 10554492), (3, 7036328), (4, 5277246), (6, 3518164), (8, 2638623), (12, 1759082), (13, 1623768), (24, 879541), (26, 811884), (29, 727896), (39, 541256), (52, 405942), (58, 363948), (78, 270628), (87, 242632), (104, 202971), (116, 181974), (156, 135314), (174, 121316), (232, 90987), (312, 67657), (348, 60658), (377, 55992), (696, 30329), (754, 27996), (1131, 18664), (1508, 13998), (2262, 9332), (2333, 9048), (3016, 6999), (4524, 4666)]