19986255

素因数分解:

$3^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{739}}^1$

素因数の和:1351

約数の個数: 24

約数和(自身を含む): 34747440

約数和(自身を除く): 14761185

約数列:

[1, 3, 5, 9, 15, 45, 601, 739, 1803, 2217, 3005, 3695, 5409, 6651, 9015, 11085, 27045, 33255, 444139, 1332417, 2220695, 3997251, 6662085, 19986255]

約数ペア:

[(1, 19986255), (3, 6662085), (5, 3997251), (9, 2220695), (15, 1332417), (45, 444139), (601, 33255), (739, 27045), (1803, 11085), (2217, 9015), (3005, 6651), (3695, 5409)]