20636895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80929}}^1$

素因数の和:80954

約数の個数: 16

約数和(自身を含む): 34961760

約数和(自身を除く): 14324865

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80929, 242787, 404645, 1213935, 1375793, 4127379, 6878965, 20636895]

約数ペア:

[(1, 20636895), (3, 6878965), (5, 4127379), (15, 1375793), (17, 1213935), (51, 404645), (85, 242787), (255, 80929)]