21151035

素因数分解:

$3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1061}}^1$

素因数の和:1515

約数の個数: 24

約数和(自身を含む): 36779184

約数和(自身を除く): 15628149

約数列:

[1, 3, 5, 9, 15, 45, 443, 1061, 1329, 2215, 3183, 3987, 5305, 6645, 9549, 15915, 19935, 47745, 470023, 1410069, 2350115, 4230207, 7050345, 21151035]

約数ペア:

[(1, 21151035), (3, 7050345), (5, 4230207), (9, 2350115), (15, 1410069), (45, 470023), (443, 47745), (1061, 19935), (1329, 15915), (2215, 9549), (3183, 6645), (3987, 5305)]