20988982

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3041}}^1$

素因数の和:3096

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 18435338

約数列:

[1, 2, 7, 14, 17, 29, 34, 58, 119, 203, 238, 406, 493, 986, 3041, 3451, 6082, 6902, 21287, 42574, 51697, 88189, 103394, 176378, 361879, 617323, 723758, 1234646, 1499213, 2998426, 10494491, 20988982]

約数ペア:

[(1, 20988982), (2, 10494491), (7, 2998426), (14, 1499213), (17, 1234646), (29, 723758), (34, 617323), (58, 361879), (119, 176378), (203, 103394), (238, 88189), (406, 51697), (493, 42574), (986, 21287), (3041, 6902), (3451, 6082)]