31721378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{3923}}^1$

素因数の和:4249

約数の個数: 16

約数和(自身を含む): 51420096

約数和(自身を除く): 19698718

約数列:

[1, 2, 13, 26, 311, 622, 3923, 4043, 7846, 8086, 50999, 101998, 1220053, 2440106, 15860689, 31721378]

約数ペア:

[(1, 31721378), (2, 15860689), (13, 2440106), (26, 1220053), (311, 101998), (622, 50999), (3923, 8086), (4043, 7846)]