20916085

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{761}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 26334720

約数和(自身を除く): 5418635

約数列:

[1, 5, 23, 115, 239, 761, 1195, 3805, 5497, 17503, 27485, 87515, 181879, 909395, 4183217, 20916085]

約数ペア:

[(1, 20916085), (5, 4183217), (23, 909395), (115, 181879), (239, 87515), (761, 27485), (1195, 17503), (3805, 5497)]