21687523

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3527}}^1$

素因数の和:3594

約数の個数: 16

約数和(自身を含む): 26078976

約数和(自身を除く): 4391453

約数列:

[1, 11, 13, 43, 143, 473, 559, 3527, 6149, 38797, 45851, 151661, 504361, 1668271, 1971593, 21687523]

約数ペア:

[(1, 21687523), (11, 1971593), (13, 1668271), (43, 504361), (143, 151661), (473, 45851), (559, 38797), (3527, 6149)]