21803076

素因数分解:

$2^2\times 3^2\times {\mathrm{605641}}^1$

素因数の和:605651

約数の個数: 18

約数和(自身を含む): 55113422

約数和(自身を除く): 33310346

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605641, 1211282, 1816923, 2422564, 3633846, 5450769, 7267692, 10901538, 21803076]

約数ペア:

[(1, 21803076), (2, 10901538), (3, 7267692), (4, 5450769), (6, 3633846), (9, 2422564), (12, 1816923), (18, 1211282), (36, 605641)]