21287134

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{4339}}^1$

素因数の和:4575

約数の個数: 16

約数和(自身を含む): 34997760

約数和(自身を除く): 13710626

約数列:

[1, 2, 11, 22, 223, 446, 2453, 4339, 4906, 8678, 47729, 95458, 967597, 1935194, 10643567, 21287134]

約数ペア:

[(1, 21287134), (2, 10643567), (11, 1935194), (22, 967597), (223, 95458), (446, 47729), (2453, 8678), (4339, 4906)]