21391458

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{324113}}^1$

素因数の和:324129

約数の個数: 16

約数和(自身を含む): 46672416

約数和(自身を除く): 25280958

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 324113, 648226, 972339, 1944678, 3565243, 7130486, 10695729, 21391458]

約数ペア:

[(1, 21391458), (2, 10695729), (3, 7130486), (6, 3565243), (11, 1944678), (22, 972339), (33, 648226), (66, 324113)]