21311818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31249}}^1$

素因数の和:31293

約数の個数: 16

約数和(自身を含む): 36000000

約数和(自身を除く): 14688182

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31249, 62498, 343739, 687478, 968719, 1937438, 10655909, 21311818]

約数ペア:

[(1, 21311818), (2, 10655909), (11, 1937438), (22, 968719), (31, 687478), (62, 343739), (341, 62498), (682, 31249)]