28155891

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1609}}^1$

素因数の和:1938

約数の個数: 16

約数和(自身を含む): 39670400

約数和(自身を除く): 11514509

約数列:

[1, 3, 19, 57, 307, 921, 1609, 4827, 5833, 17499, 30571, 91713, 493963, 1481889, 9385297, 28155891]

約数ペア:

[(1, 28155891), (3, 9385297), (19, 1481889), (57, 493963), (307, 91713), (921, 30571), (1609, 17499), (4827, 5833)]