71997807

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{16889}}^1$

素因数の和:16935

約数の個数: 24

約数和(自身を含む): 115527600

約数和(自身を除く): 43529793

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 16889, 50667, 118223, 354669, 489781, 827561, 1469343, 2482683, 3428467, 10285401, 23999269, 71997807]

約数ペア:

[(1, 71997807), (3, 23999269), (7, 10285401), (21, 3428467), (29, 2482683), (49, 1469343), (87, 827561), (147, 489781), (203, 354669), (609, 118223), (1421, 50667), (4263, 16889)]