19913665

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 4762175

約数列:

[1, 5, 47, 101, 235, 505, 839, 4195, 4747, 23735, 39433, 84739, 197165, 423695, 3982733, 19913665]

約数ペア:

[(1, 19913665), (5, 3982733), (47, 423695), (101, 197165), (235, 84739), (505, 39433), (839, 23735), (4195, 4747)]