20817378

素因数分解:

$2^1\times 3^3\times {\mathrm{239}}^1\times {\mathrm{1613}}^1$

素因数の和:1863

約数の個数: 32

約数和(自身を含む): 46483200

約数和(自身を除く): 25665822

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 239, 478, 717, 1434, 1613, 2151, 3226, 4302, 4839, 6453, 9678, 12906, 14517, 29034, 43551, 87102, 385507, 771014, 1156521, 2313042, 3469563, 6939126, 10408689, 20817378]

約数ペア:

[(1, 20817378), (2, 10408689), (3, 6939126), (6, 3469563), (9, 2313042), (18, 1156521), (27, 771014), (54, 385507), (239, 87102), (478, 43551), (717, 29034), (1434, 14517), (1613, 12906), (2151, 9678), (3226, 6453), (4302, 4839)]