18950239

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12953}}^1$

素因数の和:12990

約数の個数: 16

約数和(自身を含む): 24871680

約数和(自身を除く): 5921441

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 12953, 90671, 142483, 246107, 997381, 1722749, 2707177, 18950239]

約数ペア:

[(1, 18950239), (7, 2707177), (11, 1722749), (19, 997381), (77, 246107), (133, 142483), (209, 90671), (1463, 12953)]