19971732

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2220

約数の個数: 48

約数和(自身を含む): 51577344

約数和(自身を除く): 31605612

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 71, 132, 142, 213, 284, 426, 781, 852, 1562, 2131, 2343, 3124, 4262, 4686, 6393, 8524, 9372, 12786, 23441, 25572, 46882, 70323, 93764, 140646, 151301, 281292, 302602, 453903, 605204, 907806, 1664311, 1815612, 3328622, 4992933, 6657244, 9985866, 19971732]

約数ペア:

[(1, 19971732), (2, 9985866), (3, 6657244), (4, 4992933), (6, 3328622), (11, 1815612), (12, 1664311), (22, 907806), (33, 605204), (44, 453903), (66, 302602), (71, 281292), (132, 151301), (142, 140646), (213, 93764), (284, 70323), (426, 46882), (781, 25572), (852, 23441), (1562, 12786), (2131, 9372), (2343, 8524), (3124, 6393), (4262, 4686)]