21650187

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{7027}}^1$

素因数の和:7122

約数の個数: 16

約数和(自身を含む): 31485440

約数和(自身を除く): 9835253

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 7027, 21081, 91351, 274053, 555133, 1665399, 7216729, 21650187]

約数ペア:

[(1, 21650187), (3, 7216729), (13, 1665399), (39, 555133), (79, 274053), (237, 91351), (1027, 21081), (3081, 7027)]