18185869

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 22498560

約数和(自身を除く): 4312691

約数列:

[1, 13, 17, 19, 61, 71, 221, 247, 323, 793, 923, 1037, 1159, 1207, 1349, 4199, 4331, 13481, 15067, 15691, 17537, 19703, 22933, 56303, 73627, 82289, 256139, 298129, 957151, 1069757, 1398913, 18185869]

約数ペア:

[(1, 18185869), (13, 1398913), (17, 1069757), (19, 957151), (61, 298129), (71, 256139), (221, 82289), (247, 73627), (323, 56303), (793, 22933), (923, 19703), (1037, 17537), (1159, 15691), (1207, 15067), (1349, 13481), (4199, 4331)]