19877361

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{5807}}^1$

素因数の和:5980

約数の個数: 16

約数和(自身を含む): 30480384

約数和(自身を除く): 10603023

約数列:

[1, 3, 7, 21, 163, 489, 1141, 3423, 5807, 17421, 40649, 121947, 946541, 2839623, 6625787, 19877361]

約数ペア:

[(1, 19877361), (3, 6625787), (7, 2839623), (21, 946541), (163, 121947), (489, 40649), (1141, 17421), (3423, 5807)]