21119938

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10853}}^1$

素因数の和:11001

約数の個数: 16

約数和(自身を含む): 36469440

約数和(自身を除く): 15349502

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10853, 21706, 75971, 151942, 1508567, 3017134, 10559969, 21119938]

約数ペア:

[(1, 21119938), (2, 10559969), (7, 3017134), (14, 1508567), (139, 151942), (278, 75971), (973, 21706), (1946, 10853)]