18958785

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12974655

約数列:

[1, 3, 5, 15, 23, 69, 115, 179, 307, 345, 537, 895, 921, 1535, 2685, 4117, 4605, 7061, 12351, 20585, 21183, 35305, 54953, 61755, 105915, 164859, 274765, 824295, 1263919, 3791757, 6319595, 18958785]

約数ペア:

[(1, 18958785), (3, 6319595), (5, 3791757), (15, 1263919), (23, 824295), (69, 274765), (115, 164859), (179, 105915), (307, 61755), (345, 54953), (537, 35305), (895, 21183), (921, 20585), (1535, 12351), (2685, 7061), (4117, 4605)]