20199123

素因数分解:

$3^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:464

約数の個数: 36

約数和(自身を含む): 34269768

約数和(自身を除く): 14070645

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 163, 281, 441, 489, 843, 1141, 1467, 1967, 2529, 3423, 5901, 7987, 10269, 13769, 17703, 23961, 41307, 45803, 71883, 123921, 137409, 320621, 412227, 961863, 2244347, 2885589, 6733041, 20199123]

約数ペア:

[(1, 20199123), (3, 6733041), (7, 2885589), (9, 2244347), (21, 961863), (49, 412227), (63, 320621), (147, 137409), (163, 123921), (281, 71883), (441, 45803), (489, 41307), (843, 23961), (1141, 17703), (1467, 13769), (1967, 10269), (2529, 7987), (3423, 5901)]