18561207

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 29933568

約数和(自身を除く): 11372361

約数列:

[1, 3, 7, 21, 23, 69, 83, 161, 249, 463, 483, 581, 1389, 1743, 1909, 3241, 5727, 9723, 10649, 13363, 31947, 38429, 40089, 74543, 115287, 223629, 269003, 807009, 883867, 2651601, 6187069, 18561207]

約数ペア:

[(1, 18561207), (3, 6187069), (7, 2651601), (21, 883867), (23, 807009), (69, 269003), (83, 223629), (161, 115287), (249, 74543), (463, 40089), (483, 38429), (581, 31947), (1389, 13363), (1743, 10649), (1909, 9723), (3241, 5727)]