381477817

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 459938304

約数和(自身を除く): 78460487

約数列:

[1, 7, 41, 71, 97, 193, 287, 497, 679, 1351, 2911, 3977, 6887, 7913, 13703, 18721, 20377, 27839, 48209, 55391, 95921, 131047, 282367, 561823, 767561, 1329191, 1976569, 3932761, 5372927, 9304337, 54496831, 381477817]

約数ペア:

[(1, 381477817), (7, 54496831), (41, 9304337), (71, 5372927), (97, 3932761), (193, 1976569), (287, 1329191), (497, 767561), (679, 561823), (1351, 282367), (2911, 131047), (3977, 95921), (6887, 55391), (7913, 48209), (13703, 27839), (18721, 20377)]