20909955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{359}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 36702720

約数和(自身を除く): 15792765

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 353, 359, 1059, 1077, 1765, 1795, 3883, 3949, 5295, 5385, 11649, 11847, 19415, 19745, 58245, 59235, 126727, 380181, 633635, 1393997, 1900905, 4181991, 6969985, 20909955]

約数ペア:

[(1, 20909955), (3, 6969985), (5, 4181991), (11, 1900905), (15, 1393997), (33, 633635), (55, 380181), (165, 126727), (353, 59235), (359, 58245), (1059, 19745), (1077, 19415), (1765, 11847), (1795, 11649), (3883, 5385), (3949, 5295)]