21002055

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82361}}^1$

素因数の和:82386

約数の個数: 16

約数和(自身を含む): 35580384

約数和(自身を除く): 14578329

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82361, 247083, 411805, 1235415, 1400137, 4200411, 7000685, 21002055]

約数ペア:

[(1, 21002055), (3, 7000685), (5, 4200411), (15, 1400137), (17, 1235415), (51, 411805), (85, 247083), (255, 82361)]