21403976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{243227}}^1$

素因数の和:243244

約数の個数: 16

約数和(自身を含む): 43781040

約数和(自身を除く): 22377064

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 243227, 486454, 972908, 1945816, 2675497, 5350994, 10701988, 21403976]

約数ペア:

[(1, 21403976), (2, 10701988), (4, 5350994), (8, 2675497), (11, 1945816), (22, 972908), (44, 486454), (88, 243227)]