387804591

素因数分解:

$3^4\times {\mathrm{1213}}^1\times {\mathrm{3947}}^1$

素因数の和:5172

約数の個数: 20

約数和(自身を含む): 579937512

約数和(自身を除く): 192132921

約数列:

[1, 3, 9, 27, 81, 1213, 3639, 3947, 10917, 11841, 32751, 35523, 98253, 106569, 319707, 4787711, 14363133, 43089399, 129268197, 387804591]

約数ペア:

[(1, 387804591), (3, 129268197), (9, 43089399), (27, 14363133), (81, 4787711), (1213, 319707), (3639, 106569), (3947, 98253), (10917, 35523), (11841, 32751)]