18946790

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9521}}^1$

素因数の和:9727

約数の個数: 16

約数和(自身を含む): 34279200

約数和(自身を除く): 15332410

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 9521, 19042, 47605, 95210, 1894679, 3789358, 9473395, 18946790]

約数ペア:

[(1, 18946790), (2, 9473395), (5, 3789358), (10, 1894679), (199, 95210), (398, 47605), (995, 19042), (1990, 9521)]