18806265

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9719}}^1$

素因数の和:9773

約数の個数: 24

約数和(自身を含む): 33359040

約数和(自身を除く): 14552775

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9719, 29157, 48595, 87471, 145785, 417917, 437355, 1253751, 2089585, 3761253, 6268755, 18806265]

約数ペア:

[(1, 18806265), (3, 6268755), (5, 3761253), (9, 2089585), (15, 1253751), (43, 437355), (45, 417917), (129, 145785), (215, 87471), (387, 48595), (645, 29157), (1935, 9719)]