20839478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{1861}}^1$

素因数の和:2383

約数の個数: 16

約数和(自身を含む): 34186320

約数和(自身を除く): 13346842

約数列:

[1, 2, 11, 22, 509, 1018, 1861, 3722, 5599, 11198, 20471, 40942, 947249, 1894498, 10419739, 20839478]

約数ペア:

[(1, 20839478), (2, 10419739), (11, 1894498), (22, 947249), (509, 40942), (1018, 20471), (1861, 11198), (3722, 5599)]