81590637

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 117411840

約数和(自身を除く): 35821203

約数列:

[1, 3, 23, 47, 69, 139, 141, 181, 417, 543, 1081, 3197, 3243, 4163, 6533, 8507, 9591, 12489, 19599, 25159, 25521, 75477, 150259, 195661, 450777, 578657, 586983, 1182473, 1735971, 3547419, 27196879, 81590637]

約数ペア:

[(1, 81590637), (3, 27196879), (23, 3547419), (47, 1735971), (69, 1182473), (139, 586983), (141, 578657), (181, 450777), (417, 195661), (543, 150259), (1081, 75477), (3197, 25521), (3243, 25159), (4163, 19599), (6533, 12489), (8507, 9591)]