19819431

素因数分解:

$3^3\times {\mathrm{43}}^2\times {\mathrm{397}}^1$

素因数の和:492

約数の個数: 24

約数和(自身を含む): 30136560

約数和(自身を除く): 10317129

約数列:

[1, 3, 9, 27, 43, 129, 387, 397, 1161, 1191, 1849, 3573, 5547, 10719, 16641, 17071, 49923, 51213, 153639, 460917, 734053, 2202159, 6606477, 19819431]

約数ペア:

[(1, 19819431), (3, 6606477), (9, 2202159), (27, 734053), (43, 460917), (129, 153639), (387, 51213), (397, 49923), (1161, 17071), (1191, 16641), (1849, 10719), (3573, 5547)]