20999758

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{3527}}^1$

素因数の和:3771

約数の個数: 16

約数和(自身を含む): 34080480

約数和(自身を除く): 13080722

約数列:

[1, 2, 13, 26, 229, 458, 2977, 3527, 5954, 7054, 45851, 91702, 807683, 1615366, 10499879, 20999758]

約数ペア:

[(1, 20999758), (2, 10499879), (13, 1615366), (26, 807683), (229, 91702), (458, 45851), (2977, 7054), (3527, 5954)]