66821656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{17659}}^1$

素因数の和:17719

約数の個数: 32

約数和(自身を含む): 139867200

約数和(自身を除く): 73045544

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 17659, 35318, 70636, 141272, 194249, 388498, 759337, 776996, 1518674, 1553992, 3037348, 6074696, 8352707, 16705414, 33410828, 66821656]

約数ペア:

[(1, 66821656), (2, 33410828), (4, 16705414), (8, 8352707), (11, 6074696), (22, 3037348), (43, 1553992), (44, 1518674), (86, 776996), (88, 759337), (172, 388498), (344, 194249), (473, 141272), (946, 70636), (1892, 35318), (3784, 17659)]