21342560

素因数分解:

$2^5\times 5^1\times {\mathrm{133391}}^1$

素因数の和:133406

約数の個数: 24

約数和(自身を含む): 50422176

約数和(自身を除く): 29079616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 133391, 266782, 533564, 666955, 1067128, 1333910, 2134256, 2667820, 4268512, 5335640, 10671280, 21342560]

約数ペア:

[(1, 21342560), (2, 10671280), (4, 5335640), (5, 4268512), (8, 2667820), (10, 2134256), (16, 1333910), (20, 1067128), (32, 666955), (40, 533564), (80, 266782), (160, 133391)]