21281330983700

素因数分解:

$2^2\times 5^2\times {\mathrm{337}}^1\times {\mathrm{1373}}^1\times {\mathrm{459937}}^1$

素因数の和:461661

約数の個数: 72

約数和(自身を含む): 46351357640952

約数和(自身を除く): 25070026657252

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 337, 674, 1348, 1373, 1685, 2746, 3370, 5492, 6740, 6865, 8425, 13730, 16850, 27460, 33700, 34325, 68650, 137300, 459937, 462701, 919874, 925402, 1839748, 1850804, 2299685, 2313505, 4599370, 4627010, 9198740, 9254020, 11498425, 11567525, 22996850, 23135050, 45993700, 46270100, 154998769, 309997538, 619995076, 631493501, 774993845, 1262987002, 1549987690, 2525974004, 3099975380, 3157467505, 3874969225, 6314935010, 7749938450, 12629870020, 15499876900, 15787337525, 31574675050, 63149350100, 212813309837, 425626619674, 851253239348, 1064066549185, 2128133098370, 4256266196740, 5320332745925, 10640665491850, 21281330983700]

約数ペア:

[(1, 21281330983700), (2, 10640665491850), (4, 5320332745925), (5, 4256266196740), (10, 2128133098370), (20, 1064066549185), (25, 851253239348), (50, 425626619674), (100, 212813309837), (337, 63149350100), (674, 31574675050), (1348, 15787337525), (1373, 15499876900), (1685, 12629870020), (2746, 7749938450), (3370, 6314935010), (5492, 3874969225), (6740, 3157467505), (6865, 3099975380), (8425, 2525974004), (13730, 1549987690), (16850, 1262987002), (27460, 774993845), (33700, 631493501), (34325, 619995076), (68650, 309997538), (137300, 154998769), (459937, 46270100), (462701, 45993700), (919874, 23135050), (925402, 22996850), (1839748, 11567525), (1850804, 11498425), (2299685, 9254020), (2313505, 9198740), (4599370, 4627010)]