20107989

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2011}}^1$

素因数の和:2129

約数の個数: 24

約数和(自身を含む): 32014944

約数和(自身を除く): 11906955

約数列:

[1, 3, 9, 11, 33, 99, 101, 303, 909, 1111, 2011, 3333, 6033, 9999, 18099, 22121, 66363, 199089, 203111, 609333, 1827999, 2234221, 6702663, 20107989]

約数ペア:

[(1, 20107989), (3, 6702663), (9, 2234221), (11, 1827999), (33, 609333), (99, 203111), (101, 199089), (303, 66363), (909, 22121), (1111, 18099), (2011, 9999), (3333, 6033)]