20871202

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{2477}}^1$

素因数の和:2873

約数の個数: 16

約数和(自身を含む): 34255872

約数和(自身を除く): 13384670

約数列:

[1, 2, 11, 22, 383, 766, 2477, 4213, 4954, 8426, 27247, 54494, 948691, 1897382, 10435601, 20871202]

約数ペア:

[(1, 20871202), (2, 10435601), (11, 1897382), (22, 948691), (383, 54494), (766, 27247), (2477, 8426), (4213, 4954)]