21270780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118171}}^1$

素因数の和:118186

約数の個数: 36

約数和(自身を含む): 64521912

約数和(自身を除く): 43251132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118171, 236342, 354513, 472684, 590855, 709026, 1063539, 1181710, 1418052, 1772565, 2127078, 2363420, 3545130, 4254156, 5317695, 7090260, 10635390, 21270780]

約数ペア:

[(1, 21270780), (2, 10635390), (3, 7090260), (4, 5317695), (5, 4254156), (6, 3545130), (9, 2363420), (10, 2127078), (12, 1772565), (15, 1418052), (18, 1181710), (20, 1063539), (30, 709026), (36, 590855), (45, 472684), (60, 354513), (90, 236342), (180, 118171)]