18071739

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1016

約数の個数: 36

約数和(自身を含む): 31104216

約数和(自身を除く): 13032477

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 953, 2107, 2709, 2859, 6321, 6671, 8577, 18963, 20013, 40979, 46697, 60039, 122937, 140091, 286853, 368811, 420273, 860559, 2007971, 2581677, 6023913, 18071739]

約数ペア:

[(1, 18071739), (3, 6023913), (7, 2581677), (9, 2007971), (21, 860559), (43, 420273), (49, 368811), (63, 286853), (129, 140091), (147, 122937), (301, 60039), (387, 46697), (441, 40979), (903, 20013), (953, 18963), (2107, 8577), (2709, 6671), (2859, 6321)]