20884171

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4597}}^1$

素因数の和:4674

約数の個数: 16

約数和(自身を含む): 26484480

約数和(自身を除く): 5600309

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 4597, 32179, 50567, 271223, 353969, 1898561, 2983453, 20884171]

約数ペア:

[(1, 20884171), (7, 2983453), (11, 1898561), (59, 353969), (77, 271223), (413, 50567), (649, 32179), (4543, 4597)]