20287961551

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{490913}}^1$

素因数の和:490971

約数の個数: 24

約数和(自身を含む): 25319380464

約数和(自身を除く): 5031418913

約数列:

[1, 11, 13, 17, 143, 187, 221, 289, 2431, 3179, 3757, 41327, 490913, 5400043, 6381869, 8345521, 70200559, 91800731, 108491773, 141873857, 1193409503, 1560612427, 1844360141, 20287961551]

約数ペア:

[(1, 20287961551), (11, 1844360141), (13, 1560612427), (17, 1193409503), (143, 141873857), (187, 108491773), (221, 91800731), (289, 70200559), (2431, 8345521), (3179, 6381869), (3757, 5400043), (41327, 490913)]