20885464

素因数分解:

$2^3\times {\mathrm{37}}^2\times {\mathrm{1907}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 40268340

約数和(自身を除く): 19382876

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 1369, 1907, 2738, 3814, 5476, 7628, 10952, 15256, 70559, 141118, 282236, 564472, 2610683, 5221366, 10442732, 20885464]

約数ペア:

[(1, 20885464), (2, 10442732), (4, 5221366), (8, 2610683), (37, 564472), (74, 282236), (148, 141118), (296, 70559), (1369, 15256), (1907, 10952), (2738, 7628), (3814, 5476)]