21757671

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10939}}^1$

素因数の和:10975

約数の個数: 24

約数和(自身を含む): 35839440

約数和(自身を除く): 14081769

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10939, 32817, 98451, 142207, 185963, 426621, 557889, 1279863, 1673667, 2417519, 7252557, 21757671]

約数ペア:

[(1, 21757671), (3, 7252557), (9, 2417519), (13, 1673667), (17, 1279863), (39, 557889), (51, 426621), (117, 185963), (153, 142207), (221, 98451), (663, 32817), (1989, 10939)]