81269289

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{719}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 123926400

約数和(自身を除く): 42657111

約数列:

[1, 3, 9, 19, 57, 171, 661, 719, 1983, 2157, 5949, 6471, 12559, 13661, 37677, 40983, 113031, 122949, 475259, 1425777, 4277331, 9029921, 27089763, 81269289]

約数ペア:

[(1, 81269289), (3, 27089763), (9, 9029921), (19, 4277331), (57, 1425777), (171, 475259), (661, 122949), (719, 113031), (1983, 40983), (2157, 37677), (5949, 13661), (6471, 12559)]