20521148

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{521}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 36978480

約数和(自身を除く): 16457332

約数列:

[1, 2, 4, 43, 86, 172, 229, 458, 521, 916, 1042, 2084, 9847, 19694, 22403, 39388, 44806, 89612, 119309, 238618, 477236, 5130287, 10260574, 20521148]

約数ペア:

[(1, 20521148), (2, 10260574), (4, 5130287), (43, 477236), (86, 238618), (172, 119309), (229, 89612), (458, 44806), (521, 39388), (916, 22403), (1042, 19694), (2084, 9847)]