20815676973

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197023}}^1$

素因数の和:197095

約数の個数: 64

約数和(自身を含む): 38837370880

約数和(自身を除く): 18021693907

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 43, 63, 91, 117, 129, 189, 273, 301, 351, 387, 559, 819, 903, 1161, 1677, 2457, 2709, 3913, 5031, 8127, 11739, 15093, 35217, 105651, 197023, 591069, 1379161, 1773207, 2561299, 4137483, 5319621, 7683897, 8471989, 12412449, 17929093, 23051691, 25415967, 37237347, 53787279, 59303923, 69155073, 76247901, 110135857, 161361837, 177911769, 228743703, 330407571, 484085511, 533735307, 770950999, 991222713, 1601205921, 2312852997, 2973668139, 6938558991, 20815676973]

約数ペア:

[(1, 20815676973), (3, 6938558991), (7, 2973668139), (9, 2312852997), (13, 1601205921), (21, 991222713), (27, 770950999), (39, 533735307), (43, 484085511), (63, 330407571), (91, 228743703), (117, 177911769), (129, 161361837), (189, 110135857), (273, 76247901), (301, 69155073), (351, 59303923), (387, 53787279), (559, 37237347), (819, 25415967), (903, 23051691), (1161, 17929093), (1677, 12412449), (2457, 8471989), (2709, 7683897), (3913, 5319621), (5031, 4137483), (8127, 2561299), (11739, 1773207), (15093, 1379161), (35217, 591069), (105651, 197023)]