2108220121

素因数分解:

$7^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1\times {\mathrm{7103}}^1$

素因数の和:7608

約数の個数: 16

約数和(自身を含む): 2438092800

約数和(自身を除く): 329872679

約数列:

[1, 7, 109, 389, 763, 2723, 7103, 42401, 49721, 296807, 774227, 2763067, 5419589, 19341469, 301174303, 2108220121]

約数ペア:

[(1, 2108220121), (7, 301174303), (109, 19341469), (389, 5419589), (763, 2763067), (2723, 774227), (7103, 296807), (42401, 49721)]