20177761569

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1\times {\mathrm{50723}}^1$

素因数の和:51749

約数の個数: 32

約数和(自身を含む): 32398433280

約数和(自身を除く): 12220671711

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 997, 2991, 6979, 18943, 20937, 50723, 56829, 132601, 152169, 355061, 397803, 963737, 1065183, 2891211, 6746159, 20238477, 50570831, 151712493, 353995817, 960845789, 1061987451, 2882537367, 6725920523, 20177761569]

約数ペア:

[(1, 20177761569), (3, 6725920523), (7, 2882537367), (19, 1061987451), (21, 960845789), (57, 353995817), (133, 151712493), (399, 50570831), (997, 20238477), (2991, 6746159), (6979, 2891211), (18943, 1065183), (20937, 963737), (50723, 397803), (56829, 355061), (132601, 152169)]