28064378

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:941

約数の個数: 16

約数和(自身を含む): 42735840

約数和(自身を除く): 14671462

約数列:

[1, 2, 139, 157, 278, 314, 643, 1286, 21823, 43646, 89377, 100951, 178754, 201902, 14032189, 28064378]

約数ペア:

[(1, 28064378), (2, 14032189), (139, 201902), (157, 178754), (278, 100951), (314, 89377), (643, 43646), (1286, 21823)]