19428409

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1493}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 26246592

約数和(自身を除く): 6818183

約数列:

[1, 7, 11, 13, 77, 91, 143, 169, 1001, 1183, 1493, 1859, 10451, 13013, 16423, 19409, 114961, 135863, 213499, 252317, 1494493, 1766219, 2775487, 19428409]

約数ペア:

[(1, 19428409), (7, 2775487), (11, 1766219), (13, 1494493), (77, 252317), (91, 213499), (143, 135863), (169, 114961), (1001, 19409), (1183, 16423), (1493, 13013), (1859, 10451)]