19916.0000000

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{30539}}^1$

素因数の和:30587

約数の個数: 16

約数和(自身を含む): 16125120

約数和(自身を除く): 8246058

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 30539, 61078, 91617, 183234, 1313177, 2626354, 3939531, 7879062]

約数ペア:

[(1, 7879062), (2, 3939531), (3, 2626354), (6, 1313177), (43, 183234), (86, 91617), (129, 61078), (258, 30539)]