18519508

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 39110400

約数和(自身を除く): 20590892

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 149, 161, 193, 298, 322, 386, 596, 644, 772, 1043, 1351, 2086, 2702, 3427, 4172, 4439, 5404, 6854, 8878, 13708, 17756, 23989, 28757, 31073, 47978, 57514, 62146, 95956, 115028, 124292, 201299, 402598, 661411, 805196, 1322822, 2645644, 4629877, 9259754, 18519508]

約数ペア:

[(1, 18519508), (2, 9259754), (4, 4629877), (7, 2645644), (14, 1322822), (23, 805196), (28, 661411), (46, 402598), (92, 201299), (149, 124292), (161, 115028), (193, 95956), (298, 62146), (322, 57514), (386, 47978), (596, 31073), (644, 28757), (772, 23989), (1043, 17756), (1351, 13708), (2086, 8878), (2702, 6854), (3427, 5404), (4172, 4439)]