19781992

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{41911}}^1$

素因数の和:41976

約数の個数: 16

約数和(自身を含む): 37720800

約数和(自身を除く): 17938808

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 41911, 83822, 167644, 335288, 2472749, 4945498, 9890996, 19781992]

約数ペア:

[(1, 19781992), (2, 9890996), (4, 4945498), (8, 2472749), (59, 335288), (118, 167644), (236, 83822), (472, 41911)]