20804513487

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1009}}^1\times {\mathrm{4871}}^1$

素因数の和:5983

約数の個数: 32

約数和(自身を含む): 29760514560

約数和(自身を除く): 8956001073

約数列:

[1, 3, 17, 51, 83, 249, 1009, 1411, 3027, 4233, 4871, 14613, 17153, 51459, 82807, 83747, 248421, 251241, 404293, 1212879, 1423699, 4271097, 4914839, 6872981, 14744517, 20618943, 83552263, 250656789, 407931637, 1223794911, 6934837829, 20804513487]

約数ペア:

[(1, 20804513487), (3, 6934837829), (17, 1223794911), (51, 407931637), (83, 250656789), (249, 83552263), (1009, 20618943), (1411, 14744517), (3027, 6872981), (4233, 4914839), (4871, 4271097), (14613, 1423699), (17153, 1212879), (51459, 404293), (82807, 251241), (83747, 248421)]