28331307

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{571}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 42385200

約数和(自身を除く): 14053893

約数列:

[1, 3, 9, 37, 111, 149, 333, 447, 571, 1341, 1713, 5139, 5513, 16539, 21127, 49617, 63381, 85079, 190143, 255237, 765711, 3147923, 9443769, 28331307]

約数ペア:

[(1, 28331307), (3, 9443769), (9, 3147923), (37, 765711), (111, 255237), (149, 190143), (333, 85079), (447, 63381), (571, 49617), (1341, 21127), (1713, 16539), (5139, 5513)]