18529173

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 30750720

約数和(自身を除く): 12221547

約数列:

[1, 3, 9, 13, 29, 39, 43, 87, 117, 127, 129, 261, 377, 381, 387, 559, 1131, 1143, 1247, 1651, 1677, 3393, 3683, 3741, 4953, 5031, 5461, 11049, 11223, 14859, 16211, 16383, 33147, 47879, 48633, 49149, 70993, 143637, 145899, 158369, 212979, 430911, 475107, 638937, 1425321, 2058797, 6176391, 18529173]

約数ペア:

[(1, 18529173), (3, 6176391), (9, 2058797), (13, 1425321), (29, 638937), (39, 475107), (43, 430911), (87, 212979), (117, 158369), (127, 145899), (129, 143637), (261, 70993), (377, 49149), (381, 48633), (387, 47879), (559, 33147), (1131, 16383), (1143, 16211), (1247, 14859), (1651, 11223), (1677, 11049), (3393, 5461), (3683, 5031), (3741, 4953)]