21256256

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2791}}^1$

素因数の和:2827

約数の個数: 56

約数和(自身を含む): 51060096

約数和(自身を除く): 29803840

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 136, 224, 238, 272, 448, 476, 544, 952, 1088, 1904, 2791, 3808, 5582, 7616, 11164, 19537, 22328, 39074, 44656, 47447, 78148, 89312, 94894, 156296, 178624, 189788, 312592, 332129, 379576, 625184, 664258, 759152, 1250368, 1328516, 1518304, 2657032, 3036608, 5314064, 10628128, 21256256]

約数ペア:

[(1, 21256256), (2, 10628128), (4, 5314064), (7, 3036608), (8, 2657032), (14, 1518304), (16, 1328516), (17, 1250368), (28, 759152), (32, 664258), (34, 625184), (56, 379576), (64, 332129), (68, 312592), (112, 189788), (119, 178624), (136, 156296), (224, 94894), (238, 89312), (272, 78148), (448, 47447), (476, 44656), (544, 39074), (952, 22328), (1088, 19537), (1904, 11164), (2791, 7616), (3808, 5582)]