205690009

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1\times {\mathrm{863}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 238878720

約数和(自身を除く): 33188711

約数列:

[1, 7, 79, 431, 553, 863, 3017, 6041, 34049, 68177, 238343, 371953, 477239, 2603671, 29384287, 205690009]

約数ペア:

[(1, 205690009), (7, 29384287), (79, 2603671), (431, 477239), (553, 371953), (863, 238343), (3017, 68177), (6041, 34049)]