21208171024

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1\times {\mathrm{2473}}^1$

素因数の和:3308

約数の個数: 80

約数和(自身を含む): 44645111280

約数和(自身を除く): 23436940256

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 769, 1394, 1538, 2473, 2788, 3076, 4946, 5576, 6152, 9892, 11152, 12304, 13073, 19784, 26146, 31529, 39568, 42041, 52292, 63058, 84082, 101393, 104584, 126116, 168164, 202786, 209168, 252232, 336328, 405572, 504464, 535993, 672656, 811144, 1071986, 1622288, 1723681, 1901737, 2143972, 3447362, 3803474, 4287944, 6894724, 7606948, 8575888, 13789448, 15213896, 27578896, 30427792, 32329529, 64659058, 77971217, 129318116, 155942434, 258636232, 311884868, 517272464, 623769736, 1247539472, 1325510689, 2651021378, 5302042756, 10604085512, 21208171024]

約数ペア:

[(1, 21208171024), (2, 10604085512), (4, 5302042756), (8, 2651021378), (16, 1325510689), (17, 1247539472), (34, 623769736), (41, 517272464), (68, 311884868), (82, 258636232), (136, 155942434), (164, 129318116), (272, 77971217), (328, 64659058), (656, 32329529), (697, 30427792), (769, 27578896), (1394, 15213896), (1538, 13789448), (2473, 8575888), (2788, 7606948), (3076, 6894724), (4946, 4287944), (5576, 3803474), (6152, 3447362), (9892, 2143972), (11152, 1901737), (12304, 1723681), (13073, 1622288), (19784, 1071986), (26146, 811144), (31529, 672656), (39568, 535993), (42041, 504464), (52292, 405572), (63058, 336328), (84082, 252232), (101393, 209168), (104584, 202786), (126116, 168164)]