21687603

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{5351}}^1$

素因数の和:5554

約数の個数: 16

約数和(自身を含む): 33225216

約数和(自身を除く): 11537613

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 5351, 16053, 37457, 112371, 1032743, 3098229, 7229201, 21687603]

約数ペア:

[(1, 21687603), (3, 7229201), (7, 3098229), (21, 1032743), (193, 112371), (579, 37457), (1351, 16053), (4053, 5351)]