21085956

素因数分解:

$2^2\times 3^2\times {\mathrm{585721}}^1$

素因数の和:585731

約数の個数: 18

約数和(自身を含む): 53300702

約数和(自身を除く): 32214746

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 585721, 1171442, 1757163, 2342884, 3514326, 5271489, 7028652, 10542978, 21085956]

約数ペア:

[(1, 21085956), (2, 10542978), (3, 7028652), (4, 5271489), (6, 3514326), (9, 2342884), (12, 1757163), (18, 1171442), (36, 585721)]