20689474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8941}}^1$

素因数の和:9045

約数の個数: 16

約数和(自身を含む): 33800760

約数和(自身を除く): 13111286

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8941, 17882, 116233, 232466, 795749, 1591498, 10344737, 20689474]

約数ペア:

[(1, 20689474), (2, 10344737), (13, 1591498), (26, 795749), (89, 232466), (178, 116233), (1157, 17882), (2314, 8941)]