217778868395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{208400831}}^1$

素因数の和:208400866

約数の個数: 16

約数和(自身を含む): 300097198080

約数和(自身を除く): 82318329685

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 208400831, 1042004155, 2292409141, 3959615789, 11462045705, 19798078945, 43555773679, 217778868395]

約数ペア:

[(1, 217778868395), (5, 43555773679), (11, 19798078945), (19, 11462045705), (55, 3959615789), (95, 2292409141), (209, 1042004155), (1045, 208400831)]