20255613

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 11846787

約数列:

[1, 3, 7, 21, 37, 111, 131, 199, 259, 393, 597, 777, 917, 1393, 2751, 4179, 4847, 7363, 14541, 22089, 26069, 33929, 51541, 78207, 101787, 154623, 182483, 547449, 964553, 2893659, 6751871, 20255613]

約数ペア:

[(1, 20255613), (3, 6751871), (7, 2893659), (21, 964553), (37, 547449), (111, 182483), (131, 154623), (199, 101787), (259, 78207), (393, 51541), (597, 33929), (777, 26069), (917, 22089), (1393, 14541), (2751, 7363), (4179, 4847)]