21241575

素因数分解:

$3^3\times 5^2\times {\mathrm{31469}}^1$

素因数の和:31488

約数の個数: 24

約数和(自身を含む): 39022800

約数和(自身を除く): 17781225

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31469, 94407, 157345, 283221, 472035, 786725, 849663, 1416105, 2360175, 4248315, 7080525, 21241575]

約数ペア:

[(1, 21241575), (3, 7080525), (5, 4248315), (9, 2360175), (15, 1416105), (25, 849663), (27, 786725), (45, 472035), (75, 283221), (135, 157345), (225, 94407), (675, 31469)]