19493397

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 36661248

約数和(自身を除く): 17167851

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 63, 69, 77, 99, 161, 207, 231, 253, 483, 693, 759, 1223, 1449, 1771, 2277, 3669, 5313, 8561, 11007, 13453, 15939, 25683, 28129, 40359, 77049, 84387, 94171, 121077, 196903, 253161, 282513, 309419, 590709, 847539, 928257, 1772127, 2165933, 2784771, 6497799, 19493397]

約数ペア:

[(1, 19493397), (3, 6497799), (7, 2784771), (9, 2165933), (11, 1772127), (21, 928257), (23, 847539), (33, 590709), (63, 309419), (69, 282513), (77, 253161), (99, 196903), (161, 121077), (207, 94171), (231, 84387), (253, 77049), (483, 40359), (693, 28129), (759, 25683), (1223, 15939), (1449, 13453), (1771, 11007), (2277, 8561), (3669, 5313)]