18712743

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{30727}}^1$

素因数の和:30766

約数の個数: 16

約数和(自身を含む): 29498880

約数和(自身を除く): 10786137

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 30727, 92181, 215089, 645267, 891083, 2673249, 6237581, 18712743]

約数ペア:

[(1, 18712743), (3, 6237581), (7, 2673249), (21, 891083), (29, 645267), (87, 215089), (203, 92181), (609, 30727)]