20259998

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{83719}}^1$

素因数の和:83743

約数の個数: 12

約数和(自身を含む): 33404280

約数和(自身を除く): 13144282

約数列:

[1, 2, 11, 22, 121, 242, 83719, 167438, 920909, 1841818, 10129999, 20259998]

約数ペア:

[(1, 20259998), (2, 10129999), (11, 1841818), (22, 920909), (121, 167438), (242, 83719)]