20149761891

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10781039}}^1$

素因数の和:10781138

約数の個数: 16

約数和(自身を含む): 31049395200

約数和(自身を除く): 10899633309

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10781039, 32343117, 75467273, 226401819, 959512471, 2878537413, 6716587297, 20149761891]

約数ペア:

[(1, 20149761891), (3, 6716587297), (7, 2878537413), (21, 959512471), (89, 226401819), (267, 75467273), (623, 32343117), (1869, 10781039)]