20015259

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 29779776

約数和(自身を除く): 9764517

約数列:

[1, 3, 11, 33, 61, 163, 183, 489, 671, 1793, 2013, 3721, 5379, 9943, 11163, 29829, 40931, 109373, 122793, 328119, 606523, 1819569, 6671753, 20015259]

約数ペア:

[(1, 20015259), (3, 6671753), (11, 1819569), (33, 606523), (61, 328119), (163, 122793), (183, 109373), (489, 40931), (671, 29829), (1793, 11163), (2013, 9943), (3721, 5379)]