18899090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{269987}}^1$

素因数の和:270001

約数の個数: 16

約数和(自身を含む): 38878272

約数和(自身を除く): 19979182

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 269987, 539974, 1349935, 1889909, 2699870, 3779818, 9449545, 18899090]

約数ペア:

[(1, 18899090), (2, 9449545), (5, 3779818), (7, 2699870), (10, 1889909), (14, 1349935), (35, 539974), (70, 269987)]