20997326

素因数分解:

$2^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{2269}}^1$

素因数の和:2939

約数の個数: 16

約数和(自身を含む): 36065760

約数和(自身を除く): 15068434

約数列:

[1, 2, 7, 14, 661, 1322, 2269, 4538, 4627, 9254, 15883, 31766, 1499809, 2999618, 10498663, 20997326]

約数ペア:

[(1, 20997326), (2, 10498663), (7, 2999618), (14, 1499809), (661, 31766), (1322, 15883), (2269, 9254), (4538, 4627)]