21080432

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24859}}^1$

素因数の和:24920

約数の個数: 20

約数和(自身を含む): 41615640

約数和(自身を除く): 20535208

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24859, 49718, 99436, 198872, 397744, 1317527, 2635054, 5270108, 10540216, 21080432]

約数ペア:

[(1, 21080432), (2, 10540216), (4, 5270108), (8, 2635054), (16, 1317527), (53, 397744), (106, 198872), (212, 99436), (424, 49718), (848, 24859)]