20905203

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15451}}^1$

素因数の和:15506

約数の個数: 16

約数和(自身を含む): 31151232

約数和(自身を除く): 10246029

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15451, 46353, 169961, 509883, 633491, 1900473, 6968401, 20905203]

約数ペア:

[(1, 20905203), (3, 6968401), (11, 1900473), (33, 633491), (41, 509883), (123, 169961), (451, 46353), (1353, 15451)]