278326797

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{2213}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 436140288

約数和(自身を除く): 157813491

約数列:

[1, 3, 7, 21, 53, 113, 159, 339, 371, 791, 1113, 2213, 2373, 5989, 6639, 15491, 17967, 41923, 46473, 117289, 125769, 250069, 351867, 750207, 821023, 1750483, 2463069, 5251449, 13253657, 39760971, 92775599, 278326797]

約数ペア:

[(1, 278326797), (3, 92775599), (7, 39760971), (21, 13253657), (53, 5251449), (113, 2463069), (159, 1750483), (339, 821023), (371, 750207), (791, 351867), (1113, 250069), (2213, 125769), (2373, 117289), (5989, 46473), (6639, 41923), (15491, 17967)]