20187063

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1009}}^1$

素因数の和:1053

約数の個数: 40

約数和(自身を含む): 34218800

約数和(自身を除く): 14031737

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1009, 1053, 1539, 2223, 3027, 6669, 9081, 13117, 19171, 20007, 27243, 39351, 57513, 81729, 118053, 172539, 249223, 354159, 517617, 747669, 1062477, 1552851, 2243007, 6729021, 20187063]

約数ペア:

[(1, 20187063), (3, 6729021), (9, 2243007), (13, 1552851), (19, 1062477), (27, 747669), (39, 517617), (57, 354159), (81, 249223), (117, 172539), (171, 118053), (247, 81729), (351, 57513), (513, 39351), (741, 27243), (1009, 20007), (1053, 19171), (1539, 13117), (2223, 9081), (3027, 6669)]