20654667

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 34864128

約数和(自身を除く): 14209461

約数列:

[1, 3, 9, 11, 23, 33, 47, 69, 99, 141, 193, 207, 253, 423, 517, 579, 759, 1081, 1551, 1737, 2123, 2277, 3243, 4439, 4653, 6369, 9071, 9729, 11891, 13317, 19107, 27213, 35673, 39951, 48829, 81639, 99781, 107019, 146487, 208633, 299343, 439461, 625899, 898029, 1877697, 2294963, 6884889, 20654667]

約数ペア:

[(1, 20654667), (3, 6884889), (9, 2294963), (11, 1877697), (23, 898029), (33, 625899), (47, 439461), (69, 299343), (99, 208633), (141, 146487), (193, 107019), (207, 99781), (253, 81639), (423, 48829), (517, 39951), (579, 35673), (759, 27213), (1081, 19107), (1551, 13317), (1737, 11891), (2123, 9729), (2277, 9071), (3243, 6369), (4439, 4653)]