19965495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5261}}^1$

素因数の和:5303

約数の個数: 32

約数和(自身を含む): 36370944

約数和(自身を除く): 16405449

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5261, 15783, 26305, 57871, 78915, 121003, 173613, 289355, 363009, 605015, 868065, 1331033, 1815045, 3993099, 6655165, 19965495]

約数ペア:

[(1, 19965495), (3, 6655165), (5, 3993099), (11, 1815045), (15, 1331033), (23, 868065), (33, 605015), (55, 363009), (69, 289355), (115, 173613), (165, 121003), (253, 78915), (345, 57871), (759, 26305), (1265, 15783), (3795, 5261)]