20818435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4253}}^1$

素因数の和:4358

約数の個数: 16

約数和(自身を含む): 27565920

約数和(自身を除く): 6747485

約数列:

[1, 5, 11, 55, 89, 445, 979, 4253, 4895, 21265, 46783, 233915, 378517, 1892585, 4163687, 20818435]

約数ペア:

[(1, 20818435), (5, 4163687), (11, 1892585), (55, 378517), (89, 233915), (445, 46783), (979, 21265), (4253, 4895)]