19809811

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2729}}^1$

素因数の和:2814

約数の個数: 16

約数和(自身を含む): 24373440

約数和(自身を除く): 4563629

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2729, 7259, 19103, 46393, 166469, 324751, 1165283, 2829973, 19809811]

約数ペア:

[(1, 19809811), (7, 2829973), (17, 1165283), (61, 324751), (119, 166469), (427, 46393), (1037, 19103), (2729, 7259)]