20115513

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 32918400

約数和(自身を除く): 12802887

約数列:

[1, 3, 9, 11, 27, 33, 89, 99, 267, 297, 761, 801, 979, 2283, 2403, 2937, 6849, 8371, 8811, 20547, 25113, 26433, 67729, 75339, 203187, 226017, 609561, 745019, 1828683, 2235057, 6705171, 20115513]

約数ペア:

[(1, 20115513), (3, 6705171), (9, 2235057), (11, 1828683), (27, 745019), (33, 609561), (89, 226017), (99, 203187), (267, 75339), (297, 67729), (761, 26433), (801, 25113), (979, 20547), (2283, 8811), (2403, 8371), (2937, 6849)]