20972434

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31873}}^1$

素因数の和:31929

約数の個数: 16

約数和(自身を含む): 36718848

約数和(自身を除く): 15746414

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 31873, 63746, 223111, 446222, 1498031, 2996062, 10486217, 20972434]

約数ペア:

[(1, 20972434), (2, 10486217), (7, 2996062), (14, 1498031), (47, 446222), (94, 223111), (329, 63746), (658, 31873)]