19363281

素因数分解:

$3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{839}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 30260160

約数和(自身を除く): 10896879

約数列:

[1, 3, 7, 21, 49, 147, 157, 471, 839, 1099, 2517, 3297, 5873, 7693, 17619, 23079, 41111, 123333, 131723, 395169, 922061, 2766183, 6454427, 19363281]

約数ペア:

[(1, 19363281), (3, 6454427), (7, 2766183), (21, 922061), (49, 395169), (147, 131723), (157, 123333), (471, 41111), (839, 23079), (1099, 17619), (2517, 7693), (3297, 5873)]