20070687

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 33843712

約数和(自身を除く): 13773025

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 1987, 3367, 5961, 10101, 13909, 25831, 41727, 73519, 77493, 180817, 220557, 514633, 542451, 955747, 1543899, 2867241, 6690229, 20070687]

約数ペア:

[(1, 20070687), (3, 6690229), (7, 2867241), (13, 1543899), (21, 955747), (37, 542451), (39, 514633), (91, 220557), (111, 180817), (259, 77493), (273, 73519), (481, 41727), (777, 25831), (1443, 13909), (1987, 10101), (3367, 5961)]