21184873

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 2385047

約数列:

[1, 17, 31, 61, 527, 659, 1037, 1891, 11203, 20429, 32147, 40199, 347293, 683383, 1246169, 21184873]

約数ペア:

[(1, 21184873), (17, 1246169), (31, 683383), (61, 347293), (527, 40199), (659, 32147), (1037, 20429), (1891, 11203)]