13781389904

素因数分解:

$2^4\times {\mathrm{1289}}^1\times {\mathrm{668221}}^1$

素因数の和:669518

約数の個数: 20

約数和(自身を含む): 26722197780

約数和(自身を除く): 12940807876

約数列:

[1, 2, 4, 8, 16, 1289, 2578, 5156, 10312, 20624, 668221, 1336442, 2672884, 5345768, 10691536, 861336869, 1722673738, 3445347476, 6890694952, 13781389904]

約数ペア:

[(1, 13781389904), (2, 6890694952), (4, 3445347476), (8, 1722673738), (16, 861336869), (1289, 10691536), (2578, 5345768), (5156, 2672884), (10312, 1336442), (20624, 668221)]