21260001

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{17159}}^1$

素因数の和:17228

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 11687199

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 17159, 51477, 120113, 360339, 1012381, 3037143, 7086667, 21260001]

約数ペア:

[(1, 21260001), (3, 7086667), (7, 3037143), (21, 1012381), (59, 360339), (177, 120113), (413, 51477), (1239, 17159)]