18903087

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9679}}^1$

素因数の和:9723

約数の個数: 24

約数和(自身を含む): 32215040

約数和(自身を除く): 13311953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 9679, 29037, 67753, 87111, 203259, 300049, 609777, 900147, 2100343, 2700441, 6301029, 18903087]

約数ペア:

[(1, 18903087), (3, 6301029), (7, 2700441), (9, 2100343), (21, 900147), (31, 609777), (63, 300049), (93, 203259), (217, 87111), (279, 67753), (651, 29037), (1953, 9679)]