40639257

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{607}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 60513024

約数和(自身を除く): 19873767

約数列:

[1, 3, 9, 43, 129, 173, 387, 519, 607, 1557, 1821, 5463, 7439, 22317, 26101, 66951, 78303, 105011, 234909, 315033, 945099, 4515473, 13546419, 40639257]

約数ペア:

[(1, 40639257), (3, 13546419), (9, 4515473), (43, 945099), (129, 315033), (173, 234909), (387, 105011), (519, 78303), (607, 66951), (1557, 26101), (1821, 22317), (5463, 7439)]