20647822

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8923}}^1$

素因数の和:9027

約数の個数: 16

約数和(自身を含む): 33732720

約数和(自身を除く): 13084898

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8923, 17846, 115999, 231998, 794147, 1588294, 10323911, 20647822]

約数ペア:

[(1, 20647822), (2, 10323911), (13, 1588294), (26, 794147), (89, 231998), (178, 115999), (1157, 17846), (2314, 8923)]