20985044

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3889}}^1$

素因数の和:3983

約数の個数: 24

約数和(自身を含む): 39211200

約数和(自身を除く): 18226156

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3889, 5396, 7778, 15556, 73891, 147782, 276119, 295564, 552238, 1104476, 5246261, 10492522, 20985044]

約数ペア:

[(1, 20985044), (2, 10492522), (4, 5246261), (19, 1104476), (38, 552238), (71, 295564), (76, 276119), (142, 147782), (284, 73891), (1349, 15556), (2698, 7778), (3889, 5396)]