20121207489

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{19163}}^1$

素因数の和:19356

約数の個数: 48

約数和(自身を含む): 31390632000

約数和(自身を除く): 11269424511

約数列:

[1, 3, 9, 27, 29, 81, 87, 149, 243, 261, 447, 783, 1341, 2349, 4023, 4321, 7047, 12069, 12963, 19163, 36207, 38889, 57489, 116667, 172467, 350001, 517401, 555727, 1050003, 1552203, 1667181, 2855287, 4656609, 5001543, 8565861, 15004629, 25697583, 45013887, 77092749, 82803323, 135041661, 231278247, 248409969, 693834741, 745229907, 2235689721, 6707069163, 20121207489]

約数ペア:

[(1, 20121207489), (3, 6707069163), (9, 2235689721), (27, 745229907), (29, 693834741), (81, 248409969), (87, 231278247), (149, 135041661), (243, 82803323), (261, 77092749), (447, 45013887), (783, 25697583), (1341, 15004629), (2349, 8565861), (4023, 5001543), (4321, 4656609), (7047, 2855287), (12069, 1667181), (12963, 1552203), (19163, 1050003), (36207, 555727), (38889, 517401), (57489, 350001), (116667, 172467)]