19747566

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 44460000

約数和(自身を除く): 24712434

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 149, 199, 222, 298, 333, 398, 447, 597, 666, 894, 1194, 1341, 1791, 2682, 3582, 5513, 7363, 11026, 14726, 16539, 22089, 29651, 33078, 44178, 49617, 59302, 66267, 88953, 99234, 132534, 177906, 266859, 533718, 1097087, 2194174, 3291261, 6582522, 9873783, 19747566]

約数ペア:

[(1, 19747566), (2, 9873783), (3, 6582522), (6, 3291261), (9, 2194174), (18, 1097087), (37, 533718), (74, 266859), (111, 177906), (149, 132534), (199, 99234), (222, 88953), (298, 66267), (333, 59302), (398, 49617), (447, 44178), (597, 33078), (666, 29651), (894, 22089), (1194, 16539), (1341, 14726), (1791, 11026), (2682, 7363), (3582, 5513)]