21986136

素因数分解:

$2^3\times 3^2\times {\mathrm{305363}}^1$

素因数の和:305375

約数の個数: 24

約数和(自身を含む): 59545980

約数和(自身を除く): 37559844

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 305363, 610726, 916089, 1221452, 1832178, 2442904, 2748267, 3664356, 5496534, 7328712, 10993068, 21986136]

約数ペア:

[(1, 21986136), (2, 10993068), (3, 7328712), (4, 5496534), (6, 3664356), (8, 2748267), (9, 2442904), (12, 1832178), (18, 1221452), (24, 916089), (36, 610726), (72, 305363)]