21059753

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8663}}^1$

素因数の和:8704

約数の個数: 16

約数和(自身を含む): 26199936

約数和(自身を除く): 5140183

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8663, 95293, 112619, 147271, 1238809, 1619981, 1914523, 21059753]

約数ペア:

[(1, 21059753), (11, 1914523), (13, 1619981), (17, 1238809), (143, 147271), (187, 112619), (221, 95293), (2431, 8663)]