21373281

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13417}}^1$

素因数の和:13485

約数の個数: 16

約数和(自身を含む): 32203200

約数和(自身を除く): 10829919

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13417, 40251, 120753, 362259, 791603, 2374809, 7124427, 21373281]

約数ペア:

[(1, 21373281), (3, 7124427), (9, 2374809), (27, 791603), (59, 362259), (177, 120753), (531, 40251), (1593, 13417)]