21340824

素因数分解:

$2^3\times 3^1\times {\mathrm{491}}^1\times {\mathrm{1811}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 53490240

約数和(自身を除く): 32149416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 491, 982, 1473, 1811, 1964, 2946, 3622, 3928, 5433, 5892, 7244, 10866, 11784, 14488, 21732, 43464, 889201, 1778402, 2667603, 3556804, 5335206, 7113608, 10670412, 21340824]

約数ペア:

[(1, 21340824), (2, 10670412), (3, 7113608), (4, 5335206), (6, 3556804), (8, 2667603), (12, 1778402), (24, 889201), (491, 43464), (982, 21732), (1473, 14488), (1811, 11784), (1964, 10866), (2946, 7244), (3622, 5892), (3928, 5433)]