18990389

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1009}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 21816000

約数和(自身を除く): 2825611

約数列:

[1, 11, 29, 59, 319, 649, 1009, 1711, 11099, 18821, 29261, 59531, 321871, 654841, 1726399, 18990389]

約数ペア:

[(1, 18990389), (11, 1726399), (29, 654841), (59, 321871), (319, 59531), (649, 29261), (1009, 18821), (1711, 11099)]