18989103

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{24439}}^1$

素因数の和:24486

約数の個数: 16

約数和(自身を含む): 29719040

約数和(自身を除く): 10729937

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 24439, 73317, 171073, 513219, 904243, 2712729, 6329701, 18989103]

約数ペア:

[(1, 18989103), (3, 6329701), (7, 2712729), (21, 904243), (37, 513219), (111, 171073), (259, 73317), (777, 24439)]