18591183

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:768

約数の個数: 36

約数和(自身を含む): 30831840

約数和(自身を除く): 12240657

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 169, 221, 507, 663, 719, 1521, 1989, 2157, 2873, 6471, 8619, 9347, 12223, 25857, 28041, 36669, 84123, 110007, 121511, 158899, 364533, 476697, 1093599, 1430091, 2065687, 6197061, 18591183]

約数ペア:

[(1, 18591183), (3, 6197061), (9, 2065687), (13, 1430091), (17, 1093599), (39, 476697), (51, 364533), (117, 158899), (153, 121511), (169, 110007), (221, 84123), (507, 36669), (663, 28041), (719, 25857), (1521, 12223), (1989, 9347), (2157, 8619), (2873, 6471)]