20289005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{3803}}^1$

素因数の和:3916

約数の個数: 16

約数和(自身を含む): 26841024

約数和(自身を除く): 6552019

約数列:

[1, 5, 11, 55, 97, 485, 1067, 3803, 5335, 19015, 41833, 209165, 368891, 1844455, 4057801, 20289005]

約数ペア:

[(1, 20289005), (5, 4057801), (11, 1844455), (55, 368891), (97, 209165), (485, 41833), (1067, 19015), (3803, 5335)]