19491688

素因数分解:

$2^3\times {\mathrm{487}}^1\times {\mathrm{5003}}^1$

素因数の和:5496

約数の個数: 16

約数和(自身を含む): 36629280

約数和(自身を除く): 17137592

約数列:

[1, 2, 4, 8, 487, 974, 1948, 3896, 5003, 10006, 20012, 40024, 2436461, 4872922, 9745844, 19491688]

約数ペア:

[(1, 19491688), (2, 9745844), (4, 4872922), (8, 2436461), (487, 40024), (974, 20012), (1948, 10006), (3896, 5003)]