18868534

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1493}}^1$

素因数の和:1655

約数の個数: 16

約数和(自身を含む): 29043360

約数和(自身を除く): 10174826

約数列:

[1, 2, 71, 89, 142, 178, 1493, 2986, 6319, 12638, 106003, 132877, 212006, 265754, 9434267, 18868534]

約数ペア:

[(1, 18868534), (2, 9434267), (71, 265754), (89, 212006), (142, 132877), (178, 106003), (1493, 12638), (2986, 6319)]