18971342

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:368

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12962098

約数列:

[1, 2, 13, 26, 43, 71, 86, 142, 239, 478, 559, 923, 1118, 1846, 3053, 3107, 6106, 6214, 10277, 16969, 20554, 33938, 39689, 79378, 133601, 220597, 267202, 441194, 729667, 1459334, 9485671, 18971342]

約数ペア:

[(1, 18971342), (2, 9485671), (13, 1459334), (26, 729667), (43, 441194), (71, 267202), (86, 220597), (142, 133601), (239, 79378), (478, 39689), (559, 33938), (923, 20554), (1118, 16969), (1846, 10277), (3053, 6214), (3107, 6106)]