257865987

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{21313}}^1$

素因数の和:21462

約数の個数: 16

約数和(自身を含む): 356370080

約数和(自身を除く): 98504093

約数列:

[1, 3, 37, 109, 111, 327, 4033, 12099, 21313, 63939, 788581, 2323117, 2365743, 6969351, 85955329, 257865987]

約数ペア:

[(1, 257865987), (3, 85955329), (37, 6969351), (109, 2365743), (111, 2323117), (327, 788581), (4033, 63939), (12099, 21313)]