18370359

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 32448000

約数和(自身を除く): 14077641

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 133, 149, 171, 309, 399, 447, 721, 927, 1043, 1197, 1341, 1957, 2163, 2831, 3129, 5871, 6489, 8493, 9387, 13699, 15347, 17613, 19817, 25479, 41097, 46041, 59451, 107429, 123291, 138123, 178353, 291593, 322287, 874779, 966861, 2041151, 2624337, 6123453, 18370359]

約数ペア:

[(1, 18370359), (3, 6123453), (7, 2624337), (9, 2041151), (19, 966861), (21, 874779), (57, 322287), (63, 291593), (103, 178353), (133, 138123), (149, 123291), (171, 107429), (309, 59451), (399, 46041), (447, 41097), (721, 25479), (927, 19817), (1043, 17613), (1197, 15347), (1341, 13699), (1957, 9387), (2163, 8493), (2831, 6489), (3129, 5871)]