1997798

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1279}}^1$

素因数の和:1363

約数の個数: 16

約数和(自身を含む): 3317760

約数和(自身を除く): 1319962

約数列:

[1, 2, 11, 22, 71, 142, 781, 1279, 1562, 2558, 14069, 28138, 90809, 181618, 998899, 1997798]

約数ペア:

[(1, 1997798), (2, 998899), (11, 181618), (22, 90809), (71, 28138), (142, 14069), (781, 2558), (1279, 1562)]