18790828

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{15607}}^1$

素因数の和:15661

約数の個数: 24

約数和(自身を含む): 38458112

約数和(自身を除く): 19667284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 15607, 31214, 62428, 109249, 218498, 436996, 671101, 1342202, 2684404, 4697707, 9395414, 18790828]

約数ペア:

[(1, 18790828), (2, 9395414), (4, 4697707), (7, 2684404), (14, 1342202), (28, 671101), (43, 436996), (86, 218498), (172, 109249), (301, 62428), (602, 31214), (1204, 15607)]