81976138

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{4483}}^1$

素因数の和:4749

約数の個数: 16

約数和(自身を含む): 126556416

約数和(自身を除く): 44580278

約数列:

[1, 2, 41, 82, 223, 446, 4483, 8966, 9143, 18286, 183803, 367606, 999709, 1999418, 40988069, 81976138]

約数ペア:

[(1, 81976138), (2, 40988069), (41, 1999418), (82, 999709), (223, 367606), (446, 183803), (4483, 18286), (8966, 9143)]