18049031

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 26000640

約数和(自身を除く): 7951609

約数列:

[1, 7, 11, 13, 19, 73, 77, 91, 133, 143, 169, 209, 247, 511, 803, 949, 1001, 1183, 1387, 1463, 1729, 1859, 2717, 3211, 5621, 6643, 9709, 10439, 12337, 13013, 15257, 18031, 19019, 22477, 35321, 73073, 86359, 106799, 126217, 135707, 198341, 234403, 247247, 949949, 1388387, 1640821, 2578433, 18049031]

約数ペア:

[(1, 18049031), (7, 2578433), (11, 1640821), (13, 1388387), (19, 949949), (73, 247247), (77, 234403), (91, 198341), (133, 135707), (143, 126217), (169, 106799), (209, 86359), (247, 73073), (511, 35321), (803, 22477), (949, 19019), (1001, 18031), (1183, 15257), (1387, 13013), (1463, 12337), (1729, 10439), (1859, 9709), (2717, 6643), (3211, 5621)]