12149991

素因数分解:

$3^2\times 7^2\times {\mathrm{27551}}^1$

素因数の和:27571

約数の個数: 18

約数和(自身を含む): 20416032

約数和(自身を除く): 8266041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 27551, 82653, 192857, 247959, 578571, 1349999, 1735713, 4049997, 12149991]

約数ペア:

[(1, 12149991), (3, 4049997), (7, 1735713), (9, 1349999), (21, 578571), (49, 247959), (63, 192857), (147, 82653), (441, 27551)]