20884028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{5333}}^1$

素因数の和:5437

約数の個数: 24

約数和(自身を含む): 40325040

約数和(自身を除く): 19441012

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 5333, 10666, 21332, 58663, 117326, 234652, 474637, 949274, 1898548, 5221007, 10442014, 20884028]

約数ペア:

[(1, 20884028), (2, 10442014), (4, 5221007), (11, 1898548), (22, 949274), (44, 474637), (89, 234652), (178, 117326), (356, 58663), (979, 21332), (1958, 10666), (3916, 5333)]