21656216

素因数分解:

$2^3\times {\mathrm{293}}^1\times {\mathrm{9239}}^1$

素因数の和:9538

約数の個数: 16

約数和(自身を含む): 40748400

約数和(自身を除く): 19092184

約数列:

[1, 2, 4, 8, 293, 586, 1172, 2344, 9239, 18478, 36956, 73912, 2707027, 5414054, 10828108, 21656216]

約数ペア:

[(1, 21656216), (2, 10828108), (4, 5414054), (8, 2707027), (293, 73912), (586, 36956), (1172, 18478), (2344, 9239)]