21311752

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1193}}^1$

素因数の和:1246

約数の個数: 64

約数和(自身を含む): 51580800

約数和(自身を除く): 30269048

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1193, 1276, 1624, 2233, 2386, 2552, 4466, 4772, 8351, 8932, 9544, 13123, 16702, 17864, 26246, 33404, 34597, 52492, 66808, 69194, 91861, 104984, 138388, 183722, 242179, 276776, 367444, 380567, 484358, 734888, 761134, 968716, 1522268, 1937432, 2663969, 3044536, 5327938, 10655876, 21311752]

約数ペア:

[(1, 21311752), (2, 10655876), (4, 5327938), (7, 3044536), (8, 2663969), (11, 1937432), (14, 1522268), (22, 968716), (28, 761134), (29, 734888), (44, 484358), (56, 380567), (58, 367444), (77, 276776), (88, 242179), (116, 183722), (154, 138388), (203, 104984), (232, 91861), (308, 69194), (319, 66808), (406, 52492), (616, 34597), (638, 33404), (812, 26246), (1193, 17864), (1276, 16702), (1624, 13123), (2233, 9544), (2386, 8932), (2552, 8351), (4466, 4772)]