18992135

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 23915520

約数和(自身を除く): 4923385

約数列:

[1, 5, 23, 115, 239, 691, 1195, 3455, 5497, 15893, 27485, 79465, 165149, 825745, 3798427, 18992135]

約数ペア:

[(1, 18992135), (5, 3798427), (23, 825745), (115, 165149), (239, 79465), (691, 27485), (1195, 15893), (3455, 5497)]