20681238818

素因数分解:

$2^1\times {\mathrm{1019}}^1\times {\mathrm{1447}}^1\times {\mathrm{7013}}^1$

素因数の和:9481

約数の個数: 16

約数和(自身を含む): 31078192320

約数和(自身を除く): 10396953502

約数列:

[1, 2, 1019, 1447, 2038, 2894, 7013, 14026, 1474493, 2948986, 7146247, 10147811, 14292494, 20295622, 10340619409, 20681238818]

約数ペア:

[(1, 20681238818), (2, 10340619409), (1019, 20295622), (1447, 14292494), (2038, 10147811), (2894, 7146247), (7013, 2948986), (14026, 1474493)]