28784406

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 68387328

約数和(自身を除く): 39602922

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 67, 106, 134, 159, 193, 201, 318, 371, 386, 402, 469, 579, 742, 938, 1113, 1158, 1351, 1407, 2226, 2702, 2814, 3551, 4053, 7102, 8106, 10229, 10653, 12931, 20458, 21306, 24857, 25862, 30687, 38793, 49714, 61374, 71603, 74571, 77586, 90517, 143206, 149142, 181034, 214809, 271551, 429618, 543102, 685343, 1370686, 2056029, 4112058, 4797401, 9594802, 14392203, 28784406]

約数ペア:

[(1, 28784406), (2, 14392203), (3, 9594802), (6, 4797401), (7, 4112058), (14, 2056029), (21, 1370686), (42, 685343), (53, 543102), (67, 429618), (106, 271551), (134, 214809), (159, 181034), (193, 149142), (201, 143206), (318, 90517), (371, 77586), (386, 74571), (402, 71603), (469, 61374), (579, 49714), (742, 38793), (938, 30687), (1113, 25862), (1158, 24857), (1351, 21306), (1407, 20458), (2226, 12931), (2702, 10653), (2814, 10229), (3551, 8106), (4053, 7102)]