21182872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139361}}^1$

素因数の和:139386

約数の個数: 16

約数和(自身を含む): 41808600

約数和(自身を除く): 20625728

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139361, 278722, 557444, 1114888, 2647859, 5295718, 10591436, 21182872]

約数ペア:

[(1, 21182872), (2, 10591436), (4, 5295718), (8, 2647859), (19, 1114888), (38, 557444), (76, 278722), (152, 139361)]