20819810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{189271}}^1$

素因数の和:189289

約数の個数: 16

約数和(自身を含む): 40882752

約数和(自身を除く): 20062942

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 189271, 378542, 946355, 1892710, 2081981, 4163962, 10409905, 20819810]

約数ペア:

[(1, 20819810), (2, 10409905), (5, 4163962), (10, 2081981), (11, 1892710), (22, 946355), (55, 378542), (110, 189271)]