18840493

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1181}}^1$

素因数の和:1284

約数の個数: 16

約数和(自身を含む): 22467456

約数和(自身を除く): 3626963

約数列:

[1, 7, 43, 53, 301, 371, 1181, 2279, 8267, 15953, 50783, 62593, 355481, 438151, 2691499, 18840493]

約数ペア:

[(1, 18840493), (7, 2691499), (43, 438151), (53, 355481), (301, 62593), (371, 50783), (1181, 15953), (2279, 8267)]