19975782

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 24675738

約数列:

[1, 2, 3, 6, 17, 34, 37, 51, 67, 74, 79, 102, 111, 134, 158, 201, 222, 237, 402, 474, 629, 1139, 1258, 1343, 1887, 2278, 2479, 2686, 2923, 3417, 3774, 4029, 4958, 5293, 5846, 6834, 7437, 8058, 8769, 10586, 14874, 15879, 17538, 31758, 42143, 49691, 84286, 89981, 99382, 126429, 149073, 179962, 195841, 252858, 269943, 298146, 391682, 539886, 587523, 1175046, 3329297, 6658594, 9987891, 19975782]

約数ペア:

[(1, 19975782), (2, 9987891), (3, 6658594), (6, 3329297), (17, 1175046), (34, 587523), (37, 539886), (51, 391682), (67, 298146), (74, 269943), (79, 252858), (102, 195841), (111, 179962), (134, 149073), (158, 126429), (201, 99382), (222, 89981), (237, 84286), (402, 49691), (474, 42143), (629, 31758), (1139, 17538), (1258, 15879), (1343, 14874), (1887, 10586), (2278, 8769), (2479, 8058), (2686, 7437), (2923, 6834), (3417, 5846), (3774, 5293), (4029, 4958)]