21148131

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2309}}^1$

素因数の和:2426

約数の個数: 16

約数和(自身を含む): 29272320

約数和(自身を除く): 8124189

約数列:

[1, 3, 43, 71, 129, 213, 2309, 3053, 6927, 9159, 99287, 163939, 297861, 491817, 7049377, 21148131]

約数ペア:

[(1, 21148131), (3, 7049377), (43, 491817), (71, 297861), (129, 163939), (213, 99287), (2309, 9159), (3053, 6927)]