20805178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{2381}}^1$

素因数の和:2657

約数の個数: 16

約数和(自身を含む): 33186024

約数和(自身を除く): 12380846

約数列:

[1, 2, 17, 34, 257, 514, 2381, 4369, 4762, 8738, 40477, 80954, 611917, 1223834, 10402589, 20805178]

約数ペア:

[(1, 20805178), (2, 10402589), (17, 1223834), (34, 611917), (257, 80954), (514, 40477), (2381, 8738), (4369, 4762)]