21000891243

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{109}}^2\times {\mathrm{11117}}^1$

素因数の和:11391

約数の個数: 24

約数和(自身を含む): 28796242608

約数和(自身を除く): 7795351365

約数列:

[1, 3, 53, 109, 159, 327, 5777, 11117, 11881, 17331, 33351, 35643, 589201, 629693, 1211753, 1767603, 1889079, 3635259, 64222909, 132081077, 192668727, 396243231, 7000297081, 21000891243]

約数ペア:

[(1, 21000891243), (3, 7000297081), (53, 396243231), (109, 192668727), (159, 132081077), (327, 64222909), (5777, 3635259), (11117, 1889079), (11881, 1767603), (17331, 1211753), (33351, 629693), (35643, 589201)]