28457331

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{9749}}^1$

素因数の和:9898

約数の個数: 16

約数和(自身を含む): 43680000

約数和(自身を除く): 15222669

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 9749, 29247, 68243, 204729, 1355111, 4065333, 9485777, 28457331]

約数ペア:

[(1, 28457331), (3, 9485777), (7, 4065333), (21, 1355111), (139, 204729), (417, 68243), (973, 29247), (2919, 9749)]