12957721

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 15413248

約数和(自身を除く): 2455527

約数列:

[1, 7, 31, 211, 217, 283, 1477, 1981, 6541, 8773, 45787, 59713, 61411, 417991, 1851103, 12957721]

約数ペア:

[(1, 12957721), (7, 1851103), (31, 417991), (211, 61411), (217, 59713), (283, 45787), (1477, 8773), (1981, 6541)]