20109964

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5167}}^1$

素因数の和:5317

約数の個数: 24

約数和(自身を含む): 40517120

約数和(自身を除く): 20407156

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5167, 10334, 20668, 36169, 72338, 144676, 718213, 1436426, 2872852, 5027491, 10054982, 20109964]

約数ペア:

[(1, 20109964), (2, 10054982), (4, 5027491), (7, 2872852), (14, 1436426), (28, 718213), (139, 144676), (278, 72338), (556, 36169), (973, 20668), (1946, 10334), (3892, 5167)]