21978044

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{1093}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 42088368

約数和(自身を除く): 20110324

約数列:

[1, 2, 4, 11, 22, 44, 457, 914, 1093, 1828, 2186, 4372, 5027, 10054, 12023, 20108, 24046, 48092, 499501, 999002, 1998004, 5494511, 10989022, 21978044]

約数ペア:

[(1, 21978044), (2, 10989022), (4, 5494511), (11, 1998004), (22, 999002), (44, 499501), (457, 48092), (914, 24046), (1093, 20108), (1828, 12023), (2186, 10054), (4372, 5027)]