19778265

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{33809}}^1$

素因数の和:33833

約数の個数: 24

約数和(自身を含む): 36920520

約数和(自身を除く): 17142255

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 33809, 101427, 169045, 304281, 439517, 507135, 1318551, 1521405, 2197585, 3955653, 6592755, 19778265]

約数ペア:

[(1, 19778265), (3, 6592755), (5, 3955653), (9, 2197585), (13, 1521405), (15, 1318551), (39, 507135), (45, 439517), (65, 304281), (117, 169045), (195, 101427), (585, 33809)]