21267099

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 37523200

約数和(自身を除く): 16256101

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 109, 133, 163, 171, 327, 399, 489, 763, 981, 1141, 1197, 1467, 2071, 2289, 3097, 3423, 6213, 6867, 9291, 10269, 14497, 17767, 18639, 21679, 27873, 43491, 53301, 65037, 124369, 130473, 159903, 195111, 337573, 373107, 1012719, 1119321, 2363011, 3038157, 7089033, 21267099]

約数ペア:

[(1, 21267099), (3, 7089033), (7, 3038157), (9, 2363011), (19, 1119321), (21, 1012719), (57, 373107), (63, 337573), (109, 195111), (133, 159903), (163, 130473), (171, 124369), (327, 65037), (399, 53301), (489, 43491), (763, 27873), (981, 21679), (1141, 18639), (1197, 17767), (1467, 14497), (2071, 10269), (2289, 9291), (3097, 6867), (3423, 6213)]