16221978

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 22969062

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 41, 51, 54, 82, 102, 123, 153, 246, 306, 369, 431, 459, 697, 738, 862, 918, 1107, 1293, 1394, 2091, 2214, 2586, 3879, 4182, 6273, 7327, 7758, 11637, 12546, 14654, 17671, 18819, 21981, 23274, 35342, 37638, 43962, 53013, 65943, 106026, 131886, 159039, 197829, 300407, 318078, 395658, 477117, 600814, 901221, 954234, 1802442, 2703663, 5407326, 8110989, 16221978]

約数ペア:

[(1, 16221978), (2, 8110989), (3, 5407326), (6, 2703663), (9, 1802442), (17, 954234), (18, 901221), (27, 600814), (34, 477117), (41, 395658), (51, 318078), (54, 300407), (82, 197829), (102, 159039), (123, 131886), (153, 106026), (246, 65943), (306, 53013), (369, 43962), (431, 37638), (459, 35342), (697, 23274), (738, 21981), (862, 18819), (918, 17671), (1107, 14654), (1293, 12546), (1394, 11637), (2091, 7758), (2214, 7327), (2586, 6273), (3879, 4182)]