28740891

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 38931200

約数和(自身を除く): 10190309

約数列:

[1, 3, 139, 157, 417, 439, 471, 1317, 21823, 61021, 65469, 68923, 183063, 206769, 9580297, 28740891]

約数ペア:

[(1, 28740891), (3, 9580297), (139, 206769), (157, 183063), (417, 68923), (439, 65469), (471, 61021), (1317, 21823)]