21786872

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20789}}^1$

素因数の和:20926

約数の個数: 16

約数和(自身を含む): 41164200

約数和(自身を除く): 19377328

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20789, 41578, 83156, 166312, 2723359, 5446718, 10893436, 21786872]

約数ペア:

[(1, 21786872), (2, 10893436), (4, 5446718), (8, 2723359), (131, 166312), (262, 83156), (524, 41578), (1048, 20789)]