3970981

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 4854400

約数和(自身を除く): 883419

約数列:

[1, 7, 19, 73, 133, 409, 511, 1387, 2863, 7771, 9709, 29857, 54397, 208999, 567283, 3970981]

約数ペア:

[(1, 3970981), (7, 567283), (19, 208999), (73, 54397), (133, 29857), (409, 9709), (511, 7771), (1387, 2863)]