21084742

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{337}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 37477440

約数和(自身を除く): 16392698

約数列:

[1, 2, 7, 14, 41, 82, 109, 218, 287, 337, 574, 674, 763, 1526, 2359, 4469, 4718, 8938, 13817, 27634, 31283, 36733, 62566, 73466, 96719, 193438, 257131, 514262, 1506053, 3012106, 10542371, 21084742]

約数ペア:

[(1, 21084742), (2, 10542371), (7, 3012106), (14, 1506053), (41, 514262), (82, 257131), (109, 193438), (218, 96719), (287, 73466), (337, 62566), (574, 36733), (674, 31283), (763, 27634), (1526, 13817), (2359, 8938), (4469, 4718)]