18918543

素因数分解:

$3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{2377}}^1$

素因数の和:2766

約数の個数: 16

約数和(自身を含む): 28916480

約数和(自身を除く): 9997937

約数列:

[1, 3, 7, 21, 379, 1137, 2377, 2653, 7131, 7959, 16639, 49917, 900883, 2702649, 6306181, 18918543]

約数ペア:

[(1, 18918543), (3, 6306181), (7, 2702649), (21, 900883), (379, 49917), (1137, 16639), (2377, 7959), (2653, 7131)]