19943217

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16661}}^1$

素因数の和:16693

約数の個数: 24

約数和(自身を含む): 34656960

約数和(自身を除く): 14713743

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16661, 49983, 116627, 149949, 316559, 349881, 949677, 1049643, 2215913, 2849031, 6647739, 19943217]

約数ペア:

[(1, 19943217), (3, 6647739), (7, 2849031), (9, 2215913), (19, 1049643), (21, 949677), (57, 349881), (63, 316559), (133, 149949), (171, 116627), (399, 49983), (1197, 16661)]