253994517

素因数分解:

$3^2\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{3571}}^1$

素因数の和:4713

約数の個数: 24

約数和(自身を含む): 419781440

約数和(自身を除く): 165786923

約数列:

[1, 3, 7, 9, 21, 63, 1129, 3387, 3571, 7903, 10161, 10713, 23709, 24997, 32139, 71127, 74991, 224973, 4031659, 12094977, 28221613, 36284931, 84664839, 253994517]

約数ペア:

[(1, 253994517), (3, 84664839), (7, 36284931), (9, 28221613), (21, 12094977), (63, 4031659), (1129, 224973), (3387, 74991), (3571, 71127), (7903, 32139), (10161, 24997), (10713, 23709)]