20887521

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2843}}^1$

素因数の和:2956

約数の個数: 16

約数和(自身を含む): 29122560

約数和(自身を除く): 8235039

約数列:

[1, 3, 31, 79, 93, 237, 2449, 2843, 7347, 8529, 88133, 224597, 264399, 673791, 6962507, 20887521]

約数ペア:

[(1, 20887521), (3, 6962507), (31, 673791), (79, 264399), (93, 224597), (237, 88133), (2449, 8529), (2843, 7347)]