21208593

素因数分解:

$3^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{2861}}^1$

素因数の和:3224

約数の個数: 16

約数和(自身を含む): 32420736

約数和(自身を除く): 11212143

約数列:

[1, 3, 7, 21, 353, 1059, 2471, 2861, 7413, 8583, 20027, 60081, 1009933, 3029799, 7069531, 21208593]

約数ペア:

[(1, 21208593), (3, 7069531), (7, 3029799), (21, 1009933), (353, 60081), (1059, 20027), (2471, 8583), (2861, 7413)]