28008222

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 35858658

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 71, 86, 129, 139, 142, 213, 258, 278, 417, 426, 473, 781, 834, 946, 1419, 1529, 1562, 2343, 2838, 3053, 3058, 4587, 4686, 5977, 6106, 9159, 9174, 9869, 11954, 17931, 18318, 19738, 29607, 33583, 35862, 59214, 65747, 67166, 100749, 108559, 131494, 197241, 201498, 217118, 325677, 394482, 424367, 651354, 848734, 1273101, 2546202, 4668037, 9336074, 14004111, 28008222]

約数ペア:

[(1, 28008222), (2, 14004111), (3, 9336074), (6, 4668037), (11, 2546202), (22, 1273101), (33, 848734), (43, 651354), (66, 424367), (71, 394482), (86, 325677), (129, 217118), (139, 201498), (142, 197241), (213, 131494), (258, 108559), (278, 100749), (417, 67166), (426, 65747), (473, 59214), (781, 35862), (834, 33583), (946, 29607), (1419, 19738), (1529, 18318), (1562, 17931), (2343, 11954), (2838, 9869), (3053, 9174), (3058, 9159), (4587, 6106), (4686, 5977)]