21063896

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26214184

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 53, 56, 94, 106, 151, 188, 212, 302, 329, 371, 376, 424, 604, 658, 742, 1057, 1208, 1316, 1484, 2114, 2491, 2632, 2968, 4228, 4982, 7097, 8003, 8456, 9964, 14194, 16006, 17437, 19928, 28388, 32012, 34874, 49679, 56021, 56776, 64024, 69748, 99358, 112042, 139496, 198716, 224084, 376141, 397432, 448168, 752282, 1504564, 2632987, 3009128, 5265974, 10531948, 21063896]

約数ペア:

[(1, 21063896), (2, 10531948), (4, 5265974), (7, 3009128), (8, 2632987), (14, 1504564), (28, 752282), (47, 448168), (53, 397432), (56, 376141), (94, 224084), (106, 198716), (151, 139496), (188, 112042), (212, 99358), (302, 69748), (329, 64024), (371, 56776), (376, 56021), (424, 49679), (604, 34874), (658, 32012), (742, 28388), (1057, 19928), (1208, 17437), (1316, 16006), (1484, 14194), (2114, 9964), (2491, 8456), (2632, 8003), (2968, 7097), (4228, 4982)]