21436216

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{6217}}^1$

素因数の和:6654

約数の個数: 16

約数和(自身を含む): 40292640

約数和(自身を除く): 18856424

約数列:

[1, 2, 4, 8, 431, 862, 1724, 3448, 6217, 12434, 24868, 49736, 2679527, 5359054, 10718108, 21436216]

約数ペア:

[(1, 21436216), (2, 10718108), (4, 5359054), (8, 2679527), (431, 49736), (862, 24868), (1724, 12434), (3448, 6217)]