7131421778

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{21098881}}^1$

素因数の和:21098909

約数の個数: 12

約数和(自身を含む): 11583286218

約数和(自身を除く): 4451864440

約数列:

[1, 2, 13, 26, 169, 338, 21098881, 42197762, 274285453, 548570906, 3565710889, 7131421778]

約数ペア:

[(1, 7131421778), (2, 3565710889), (13, 548570906), (26, 274285453), (169, 42197762), (338, 21098881)]