21288678

素因数分解:

$2^1\times 3^1\times {\mathrm{631}}^1\times {\mathrm{5623}}^1$

素因数の和:6259

約数の個数: 16

約数和(自身を含む): 42652416

約数和(自身を除く): 21363738

約数列:

[1, 2, 3, 6, 631, 1262, 1893, 3786, 5623, 11246, 16869, 33738, 3548113, 7096226, 10644339, 21288678]

約数ペア:

[(1, 21288678), (2, 10644339), (3, 7096226), (6, 3548113), (631, 33738), (1262, 16869), (1893, 11246), (3786, 5623)]