21289938

素因数分解:

$2^1\times 3^1\times {\mathrm{997}}^1\times {\mathrm{3559}}^1$

素因数の和:4561

約数の個数: 16

約数和(自身を含む): 42634560

約数和(自身を除く): 21344622

約数列:

[1, 2, 3, 6, 997, 1994, 2991, 3559, 5982, 7118, 10677, 21354, 3548323, 7096646, 10644969, 21289938]

約数ペア:

[(1, 21289938), (2, 10644969), (3, 7096646), (6, 3548323), (997, 21354), (1994, 10677), (2991, 7118), (3559, 5982)]