21005216

素因数分解:

$2^5\times {\mathrm{431}}^1\times {\mathrm{1523}}^1$

素因数の和:1964

約数の個数: 24

約数和(自身を含む): 41477184

約数和(自身を除く): 20471968

約数列:

[1, 2, 4, 8, 16, 32, 431, 862, 1523, 1724, 3046, 3448, 6092, 6896, 12184, 13792, 24368, 48736, 656413, 1312826, 2625652, 5251304, 10502608, 21005216]

約数ペア:

[(1, 21005216), (2, 10502608), (4, 5251304), (8, 2625652), (16, 1312826), (32, 656413), (431, 48736), (862, 24368), (1523, 13792), (1724, 12184), (3046, 6896), (3448, 6092)]