27785955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1873}}^1$

素因数の和:1947

約数の個数: 32

約数和(自身を含む): 47494656

約数和(自身を除く): 19708701

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 1873, 2967, 4945, 5619, 9365, 14835, 28095, 43079, 80539, 129237, 215395, 241617, 402695, 646185, 1208085, 1852397, 5557191, 9261985, 27785955]

約数ペア:

[(1, 27785955), (3, 9261985), (5, 5557191), (15, 1852397), (23, 1208085), (43, 646185), (69, 402695), (115, 241617), (129, 215395), (215, 129237), (345, 80539), (645, 43079), (989, 28095), (1873, 14835), (2967, 9365), (4945, 5619)]