19431980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9433}}^1$

素因数の和:9545

約数の個数: 24

約数和(自身を含む): 41207712

約数和(自身を除く): 21775732

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9433, 18866, 37732, 47165, 94330, 188660, 971599, 1943198, 3886396, 4857995, 9715990, 19431980]

約数ペア:

[(1, 19431980), (2, 9715990), (4, 4857995), (5, 3886396), (10, 1943198), (20, 971599), (103, 188660), (206, 94330), (412, 47165), (515, 37732), (1030, 18866), (2060, 9433)]