28649907

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 49297248

約数和(自身を除く): 20647341

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 113, 117, 143, 197, 339, 429, 591, 1017, 1243, 1287, 1469, 1773, 2167, 2561, 3729, 4407, 6501, 7683, 11187, 13221, 16159, 19503, 22261, 23049, 28171, 48477, 66783, 84513, 145431, 200349, 244871, 253539, 289393, 734613, 868179, 2203839, 2604537, 3183323, 9549969, 28649907]

約数ペア:

[(1, 28649907), (3, 9549969), (9, 3183323), (11, 2604537), (13, 2203839), (33, 868179), (39, 734613), (99, 289393), (113, 253539), (117, 244871), (143, 200349), (197, 145431), (339, 84513), (429, 66783), (591, 48477), (1017, 28171), (1243, 23049), (1287, 22261), (1469, 19503), (1773, 16159), (2167, 13221), (2561, 11187), (3729, 7683), (4407, 6501)]