19877739

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22013}}^1$

素因数の和:22066

約数の個数: 16

約数和(自身を含む): 30995712

約数和(自身を除く): 11117973

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22013, 66039, 154091, 462273, 946559, 2839677, 6625913, 19877739]

約数ペア:

[(1, 19877739), (3, 6625913), (7, 2839677), (21, 946559), (43, 462273), (129, 154091), (301, 66039), (903, 22013)]