20107719

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6917}}^1$

素因数の和:6959

約数の個数: 24

約数和(自身を含む): 32376240

約数和(自身を除く): 12268521

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 6917, 20751, 62253, 117589, 131423, 352767, 394269, 1058301, 1182807, 2234191, 6702573, 20107719]

約数ペア:

[(1, 20107719), (3, 6702573), (9, 2234191), (17, 1182807), (19, 1058301), (51, 394269), (57, 352767), (153, 131423), (171, 117589), (323, 62253), (969, 20751), (2907, 6917)]