21787696

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4139}}^1$

素因数の和:4201

約数の個数: 40

約数和(自身を含む): 49282560

約数和(自身を除く): 27494864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 4139, 5264, 8278, 16556, 28973, 33112, 57946, 66224, 115892, 194533, 231784, 389066, 463568, 778132, 1361731, 1556264, 2723462, 3112528, 5446924, 10893848, 21787696]

約数ペア:

[(1, 21787696), (2, 10893848), (4, 5446924), (7, 3112528), (8, 2723462), (14, 1556264), (16, 1361731), (28, 778132), (47, 463568), (56, 389066), (94, 231784), (112, 194533), (188, 115892), (329, 66224), (376, 57946), (658, 33112), (752, 28973), (1316, 16556), (2632, 8278), (4139, 5264)]