21702891

素因数分解:

$3^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{2213}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 33156864

約数和(自身を除く): 11453973

約数列:

[1, 3, 7, 21, 467, 1401, 2213, 3269, 6639, 9807, 15491, 46473, 1033471, 3100413, 7234297, 21702891]

約数ペア:

[(1, 21702891), (3, 7234297), (7, 3100413), (21, 1033471), (467, 46473), (1401, 15491), (2213, 9807), (3269, 6639)]