21147171

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1051}}^1$

素因数の和:1426

約数の個数: 16

約数和(自身を含む): 29792640

約数和(自身を除く): 8645469

約数列:

[1, 3, 19, 57, 353, 1051, 1059, 3153, 6707, 19969, 20121, 59907, 371003, 1113009, 7049057, 21147171]

約数ペア:

[(1, 21147171), (3, 7049057), (19, 1113009), (57, 371003), (353, 59907), (1051, 20121), (1059, 19969), (3153, 6707)]