389293009

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{77999}}^1$

素因数の和:78060

約数の個数: 16

約数和(自身を含む): 479232000

約数和(自身を除く): 89938991

約数列:

[1, 7, 23, 31, 161, 217, 713, 4991, 77999, 545993, 1793977, 2417969, 12557839, 16925783, 55613287, 389293009]

約数ペア:

[(1, 389293009), (7, 55613287), (23, 16925783), (31, 12557839), (161, 2417969), (217, 1793977), (713, 545993), (4991, 77999)]