1977986

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:617

約数の個数: 16

約数和(自身を含む): 3118848

約数和(自身を除く): 1140862

約数列:

[1, 2, 31, 61, 62, 122, 523, 1046, 1891, 3782, 16213, 31903, 32426, 63806, 988993, 1977986]

約数ペア:

[(1, 1977986), (2, 988993), (31, 63806), (61, 32426), (62, 31903), (122, 16213), (523, 3782), (1046, 1891)]