278842401

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{8681}}^1$

素因数の和:8813

約数の個数: 24

約数和(自身を含む): 417152736

約数和(自身を除く): 138310335

約数列:

[1, 3, 9, 43, 83, 129, 249, 387, 747, 3569, 8681, 10707, 26043, 32121, 78129, 373283, 720523, 1119849, 2161569, 3359547, 6484707, 30982489, 92947467, 278842401]

約数ペア:

[(1, 278842401), (3, 92947467), (9, 30982489), (43, 6484707), (83, 3359547), (129, 2161569), (249, 1119849), (387, 720523), (747, 373283), (3569, 78129), (8681, 32121), (10707, 26043)]