18396819

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6791}}^1$

素因数の和:6847

約数の個数: 24

約数和(自身を含む): 31080192

約数和(自身を除く): 12683373

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6791, 20373, 47537, 61119, 142611, 292013, 427833, 876039, 2044091, 2628117, 6132273, 18396819]

約数ペア:

[(1, 18396819), (3, 6132273), (7, 2628117), (9, 2044091), (21, 876039), (43, 427833), (63, 292013), (129, 142611), (301, 61119), (387, 47537), (903, 20373), (2709, 6791)]