31781438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{3079}}^1$

素因数の和:3491

約数の個数: 16

約数和(自身を含む): 51485280

約数和(自身を除く): 19703842

約数列:

[1, 2, 13, 26, 397, 794, 3079, 5161, 6158, 10322, 40027, 80054, 1222363, 2444726, 15890719, 31781438]

約数ペア:

[(1, 31781438), (2, 15890719), (13, 2444726), (26, 1222363), (397, 80054), (794, 40027), (3079, 10322), (5161, 6158)]