20111278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{3557}}^1$

素因数の和:3827

約数の個数: 16

約数和(自身を含む): 33046704

約数和(自身を除く): 12935426

約数列:

[1, 2, 11, 22, 257, 514, 2827, 3557, 5654, 7114, 39127, 78254, 914149, 1828298, 10055639, 20111278]

約数ペア:

[(1, 20111278), (2, 10055639), (11, 1828298), (22, 914149), (257, 78254), (514, 39127), (2827, 7114), (3557, 5654)]