21897440

素因数分解:

$2^5\times 5^1\times {\mathrm{136859}}^1$

素因数の和:136874

約数の個数: 24

約数和(自身を含む): 51733080

約数和(自身を除く): 29835640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136859, 273718, 547436, 684295, 1094872, 1368590, 2189744, 2737180, 4379488, 5474360, 10948720, 21897440]

約数ペア:

[(1, 21897440), (2, 10948720), (4, 5474360), (5, 4379488), (8, 2737180), (10, 2189744), (16, 1368590), (20, 1094872), (32, 684295), (40, 547436), (80, 273718), (160, 136859)]