20087907

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 32194560

約数和(自身を除く): 12106653

約数列:

[1, 3, 7, 21, 31, 59, 93, 177, 217, 413, 523, 651, 1239, 1569, 1829, 3661, 5487, 10983, 12803, 16213, 30857, 38409, 48639, 92571, 113491, 215999, 340473, 647997, 956567, 2869701, 6695969, 20087907]

約数ペア:

[(1, 20087907), (3, 6695969), (7, 2869701), (21, 956567), (31, 647997), (59, 340473), (93, 215999), (177, 113491), (217, 92571), (413, 48639), (523, 38409), (651, 30857), (1239, 16213), (1569, 12803), (1829, 10983), (3661, 5487)]