257658836981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1\times {\mathrm{86111}}^1$

素因数の和:86513

約数の個数: 32

約数和(自身を含む): 320816111616

約数和(自身を除く): 63157274635

約数列:

[1, 7, 13, 91, 131, 251, 917, 1703, 1757, 3263, 11921, 22841, 32881, 86111, 230167, 427453, 602777, 1119443, 2992171, 7836101, 11280541, 21613861, 78963787, 146647033, 151297027, 280980193, 1026529231, 1966861351, 2831415791, 19819910537, 36808405283, 257658836981]

約数ペア:

[(1, 257658836981), (7, 36808405283), (13, 19819910537), (91, 2831415791), (131, 1966861351), (251, 1026529231), (917, 280980193), (1703, 151297027), (1757, 146647033), (3263, 78963787), (11921, 21613861), (22841, 11280541), (32881, 7836101), (86111, 2992171), (230167, 1119443), (427453, 602777)]