21359025

素因数分解:

$3^3\times 5^2\times {\mathrm{31643}}^1$

素因数の和:31662

約数の個数: 24

約数和(自身を含む): 39238560

約数和(自身を除く): 17879535

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31643, 94929, 158215, 284787, 474645, 791075, 854361, 1423935, 2373225, 4271805, 7119675, 21359025]

約数ペア:

[(1, 21359025), (3, 7119675), (5, 4271805), (9, 2373225), (15, 1423935), (25, 854361), (27, 791075), (45, 474645), (75, 284787), (135, 158215), (225, 94929), (675, 31643)]