20189965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1373}}^1$

素因数の和:1568

約数の個数: 16

約数和(自身を含む): 25820208

約数和(自身を除く): 5630243

約数列:

[1, 5, 17, 85, 173, 865, 1373, 2941, 6865, 14705, 23341, 116705, 237529, 1187645, 4037993, 20189965]

約数ペア:

[(1, 20189965), (5, 4037993), (17, 1187645), (85, 237529), (173, 116705), (865, 23341), (1373, 14705), (2941, 6865)]