19788993

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1951}}^1$

素因数の和:1994

約数の個数: 36

約数和(自身を含む): 34714368

約数和(自身を除く): 14925375

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 1951, 3381, 5853, 10143, 13657, 17559, 40971, 44873, 95599, 122913, 134619, 286797, 314111, 403857, 860391, 942333, 2198777, 2826999, 6596331, 19788993]

約数ペア:

[(1, 19788993), (3, 6596331), (7, 2826999), (9, 2198777), (21, 942333), (23, 860391), (49, 403857), (63, 314111), (69, 286797), (147, 134619), (161, 122913), (207, 95599), (441, 44873), (483, 40971), (1127, 17559), (1449, 13657), (1951, 10143), (3381, 5853)]