20962851

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2477}}^1$

素因数の和:2531

約数の個数: 32

約数和(自身を含む): 35524608

約数和(自身を除く): 14561757

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2477, 2821, 7431, 8463, 17339, 32201, 52017, 76787, 96603, 225407, 230361, 537509, 676221, 998231, 1612527, 2994693, 6987617, 20962851]

約数ペア:

[(1, 20962851), (3, 6987617), (7, 2994693), (13, 1612527), (21, 998231), (31, 676221), (39, 537509), (91, 230361), (93, 225407), (217, 96603), (273, 76787), (403, 52017), (651, 32201), (1209, 17339), (2477, 8463), (2821, 7431)]