20801154

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 48273408

約数和(自身を除く): 27472254

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 71, 138, 142, 193, 213, 253, 386, 426, 506, 579, 759, 781, 1158, 1518, 1562, 1633, 2123, 2343, 3266, 4246, 4439, 4686, 4899, 6369, 8878, 9798, 12738, 13317, 13703, 17963, 26634, 27406, 35926, 41109, 48829, 53889, 82218, 97658, 107778, 146487, 150733, 292974, 301466, 315169, 452199, 630338, 904398, 945507, 1891014, 3466859, 6933718, 10400577, 20801154]

約数ペア:

[(1, 20801154), (2, 10400577), (3, 6933718), (6, 3466859), (11, 1891014), (22, 945507), (23, 904398), (33, 630338), (46, 452199), (66, 315169), (69, 301466), (71, 292974), (138, 150733), (142, 146487), (193, 107778), (213, 97658), (253, 82218), (386, 53889), (426, 48829), (506, 41109), (579, 35926), (759, 27406), (781, 26634), (1158, 17963), (1518, 13703), (1562, 13317), (1633, 12738), (2123, 9798), (2343, 8878), (3266, 6369), (4246, 4899), (4439, 4686)]