21006730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4261}}^1$

素因数の和:4314

約数の個数: 32

約数和(自身を含む): 41426640

約数和(自身を除く): 20419910

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4261, 4930, 8522, 21305, 42610, 72437, 123569, 144874, 247138, 362185, 617845, 724370, 1235690, 2100673, 4201346, 10503365, 21006730]

約数ペア:

[(1, 21006730), (2, 10503365), (5, 4201346), (10, 2100673), (17, 1235690), (29, 724370), (34, 617845), (58, 362185), (85, 247138), (145, 144874), (170, 123569), (290, 72437), (493, 42610), (986, 21305), (2465, 8522), (4261, 4930)]