21556545

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1759}}^1$

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 37171200

約数和(自身を除く): 15614655

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 645, 817, 1759, 2451, 4085, 5277, 8795, 12255, 26385, 33421, 75637, 100263, 167105, 226911, 378185, 501315, 1134555, 1437103, 4311309, 7185515, 21556545]

約数ペア:

[(1, 21556545), (3, 7185515), (5, 4311309), (15, 1437103), (19, 1134555), (43, 501315), (57, 378185), (95, 226911), (129, 167105), (215, 100263), (285, 75637), (645, 33421), (817, 26385), (1759, 12255), (2451, 8795), (4085, 5277)]