21521025

素因数分解:

$3^3\times 5^2\times {\mathrm{31883}}^1$

素因数の和:31902

約数の個数: 24

約数和(自身を含む): 39536160

約数和(自身を除く): 18015135

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31883, 95649, 159415, 286947, 478245, 797075, 860841, 1434735, 2391225, 4304205, 7173675, 21521025]

約数ペア:

[(1, 21521025), (3, 7173675), (5, 4304205), (9, 2391225), (15, 1434735), (25, 860841), (27, 797075), (45, 478245), (75, 286947), (135, 159415), (225, 95649), (675, 31883)]