19903763

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{521}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 22851072

約数和(自身を除く): 2947309

約数列:

[1, 11, 23, 151, 253, 521, 1661, 3473, 5731, 11983, 38203, 78671, 131813, 865381, 1809433, 19903763]

約数ペア:

[(1, 19903763), (11, 1809433), (23, 865381), (151, 131813), (253, 78671), (521, 38203), (1661, 11983), (3473, 5731)]