20409213

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{6949}}^1$

素因数の和:7052

約数の個数: 16

約数和(自身を含む): 30024000

約数和(自身を除く): 9614787

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 6949, 20847, 76439, 229317, 618461, 1855383, 6803071, 20409213]

約数ペア:

[(1, 20409213), (3, 6803071), (11, 1855383), (33, 618461), (89, 229317), (267, 76439), (979, 20847), (2937, 6949)]