18988816

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15413}}^1$

素因数の和:15439

約数の個数: 40

約数和(自身を含む): 45872064

約数和(自身を除く): 26883248

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 15413, 30826, 61652, 107891, 123304, 169543, 215782, 246608, 339086, 431564, 678172, 863128, 1186801, 1356344, 1726256, 2373602, 2712688, 4747204, 9494408, 18988816]

約数ペア:

[(1, 18988816), (2, 9494408), (4, 4747204), (7, 2712688), (8, 2373602), (11, 1726256), (14, 1356344), (16, 1186801), (22, 863128), (28, 678172), (44, 431564), (56, 339086), (77, 246608), (88, 215782), (112, 169543), (154, 123304), (176, 107891), (308, 61652), (616, 30826), (1232, 15413)]