21709212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{258443}}^1$

素因数の和:258457

約数の個数: 24

約数和(自身を含む): 57891456

約数和(自身を除く): 36182244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 258443, 516886, 775329, 1033772, 1550658, 1809101, 3101316, 3618202, 5427303, 7236404, 10854606, 21709212]

約数ペア:

[(1, 21709212), (2, 10854606), (3, 7236404), (4, 5427303), (6, 3618202), (7, 3101316), (12, 1809101), (14, 1550658), (21, 1033772), (28, 775329), (42, 516886), (84, 258443)]