20731097151

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1559}}^1$

素因数の和:1660

約数の個数: 112

約数和(自身を含む): 34988241600

約数和(自身を除く): 14257144449

約数列:

[1, 3, 9, 17, 27, 29, 37, 51, 81, 87, 111, 153, 243, 261, 333, 459, 493, 629, 729, 783, 999, 1073, 1377, 1479, 1559, 1887, 2349, 2997, 3219, 4131, 4437, 4677, 5661, 7047, 8991, 9657, 12393, 13311, 14031, 16983, 18241, 21141, 26503, 26973, 28971, 39933, 42093, 45211, 50949, 54723, 57683, 79509, 86913, 119799, 126279, 135633, 152847, 164169, 173049, 238527, 260739, 359397, 378837, 406899, 458541, 492507, 519147, 715581, 768587, 782217, 980611, 1136511, 1220697, 1477521, 1557441, 1672807, 2146743, 2305761, 2941833, 3662091, 4432563, 4672323, 5018421, 6440229, 6917283, 8825499, 10986273, 13297689, 14016969, 15055263, 19320687, 20751849, 26476497, 28437719, 32958819, 42050907, 45165789, 62255547, 79429491, 85313157, 135497367, 186766641, 238288473, 255939471, 406492101, 560299923, 714865419, 767818413, 1219476303, 2303455239, 6910365717, 20731097151]

約数ペア:

[(1, 20731097151), (3, 6910365717), (9, 2303455239), (17, 1219476303), (27, 767818413), (29, 714865419), (37, 560299923), (51, 406492101), (81, 255939471), (87, 238288473), (111, 186766641), (153, 135497367), (243, 85313157), (261, 79429491), (333, 62255547), (459, 45165789), (493, 42050907), (629, 32958819), (729, 28437719), (783, 26476497), (999, 20751849), (1073, 19320687), (1377, 15055263), (1479, 14016969), (1559, 13297689), (1887, 10986273), (2349, 8825499), (2997, 6917283), (3219, 6440229), (4131, 5018421), (4437, 4672323), (4677, 4432563), (5661, 3662091), (7047, 2941833), (8991, 2305761), (9657, 2146743), (12393, 1672807), (13311, 1557441), (14031, 1477521), (16983, 1220697), (18241, 1136511), (21141, 980611), (26503, 782217), (26973, 768587), (28971, 715581), (39933, 519147), (42093, 492507), (45211, 458541), (50949, 406899), (54723, 378837), (57683, 359397), (79509, 260739), (86913, 238527), (119799, 173049), (126279, 164169), (135633, 152847)]