28005561

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 43891200

約数和(自身を除く): 15885639

約数列:

[1, 3, 9, 27, 29, 47, 87, 141, 261, 423, 761, 783, 1269, 1363, 2283, 4089, 6849, 12267, 20547, 22069, 35767, 36801, 66207, 107301, 198621, 321903, 595863, 965709, 1037243, 3111729, 9335187, 28005561]

約数ペア:

[(1, 28005561), (3, 9335187), (9, 3111729), (27, 1037243), (29, 965709), (47, 595863), (87, 321903), (141, 198621), (261, 107301), (423, 66207), (761, 36801), (783, 35767), (1269, 22069), (1363, 20547), (2283, 12267), (4089, 6849)]