20198612

素因数分解:

$2^2\times 7^1\times {\mathrm{721379}}^1$

素因数の和:721390

約数の個数: 12

約数和(自身を含む): 40397280

約数和(自身を除く): 20198668

約数列:

[1, 2, 4, 7, 14, 28, 721379, 1442758, 2885516, 5049653, 10099306, 20198612]

約数ペア:

[(1, 20198612), (2, 10099306), (4, 5049653), (7, 2885516), (14, 1442758), (28, 721379)]