21307460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2161}}^1$

素因数の和:2216

約数の個数: 48

約数和(自身を含む): 49034160

約数和(自身を除く): 27726700

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2161, 2465, 4322, 4930, 8644, 9860, 10805, 21610, 36737, 43220, 62669, 73474, 125338, 146948, 183685, 250676, 313345, 367370, 626690, 734740, 1065373, 1253380, 2130746, 4261492, 5326865, 10653730, 21307460]

約数ペア:

[(1, 21307460), (2, 10653730), (4, 5326865), (5, 4261492), (10, 2130746), (17, 1253380), (20, 1065373), (29, 734740), (34, 626690), (58, 367370), (68, 313345), (85, 250676), (116, 183685), (145, 146948), (170, 125338), (290, 73474), (340, 62669), (493, 43220), (580, 36737), (986, 21610), (1972, 10805), (2161, 9860), (2465, 8644), (4322, 4930)]