21765069

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 32707584

約数和(自身を除く): 10942515

約数列:

[1, 3, 9, 31, 93, 181, 279, 431, 543, 1293, 1629, 3879, 5611, 13361, 16833, 40083, 50499, 78011, 120249, 234033, 702099, 2418341, 7255023, 21765069]

約数ペア:

[(1, 21765069), (3, 7255023), (9, 2418341), (31, 702099), (93, 234033), (181, 120249), (279, 78011), (431, 50499), (543, 40083), (1293, 16833), (1629, 13361), (3879, 5611)]