20751874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72559}}^1$

素因数の和:72585

約数の個数: 16

約数和(自身を含む): 36570240

約数和(自身を除く): 15818366

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72559, 145118, 798149, 943267, 1596298, 1886534, 10375937, 20751874]

約数ペア:

[(1, 20751874), (2, 10375937), (11, 1886534), (13, 1596298), (22, 943267), (26, 798149), (143, 145118), (286, 72559)]