21247435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 29253312

約数和(自身を除く): 8005877

約数列:

[1, 5, 11, 37, 53, 55, 185, 197, 265, 407, 583, 985, 1961, 2035, 2167, 2915, 7289, 9805, 10441, 10835, 21571, 36445, 52205, 80179, 107855, 114851, 386317, 400895, 574255, 1931585, 4249487, 21247435]

約数ペア:

[(1, 21247435), (5, 4249487), (11, 1931585), (37, 574255), (53, 400895), (55, 386317), (185, 114851), (197, 107855), (265, 80179), (407, 52205), (583, 36445), (985, 21571), (1961, 10835), (2035, 10441), (2167, 9805), (2915, 7289)]