20765877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 31850496

約数和(自身を除く): 11084619

約数列:

[1, 3, 11, 31, 33, 53, 93, 159, 341, 383, 583, 1023, 1149, 1643, 1749, 4213, 4929, 11873, 12639, 18073, 20299, 35619, 54219, 60897, 130603, 223289, 391809, 629269, 669867, 1887807, 6921959, 20765877]

約数ペア:

[(1, 20765877), (3, 6921959), (11, 1887807), (31, 669867), (33, 629269), (53, 391809), (93, 223289), (159, 130603), (341, 60897), (383, 54219), (583, 35619), (1023, 20299), (1149, 18073), (1643, 12639), (1749, 11873), (4213, 4929)]