21572272

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25439}}^1$

素因数の和:25500

約数の個数: 20

約数和(自身を含む): 42586560

約数和(自身を除く): 21014288

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25439, 50878, 101756, 203512, 407024, 1348267, 2696534, 5393068, 10786136, 21572272]

約数ペア:

[(1, 21572272), (2, 10786136), (4, 5393068), (8, 2696534), (16, 1348267), (53, 407024), (106, 203512), (212, 101756), (424, 50878), (848, 25439)]