20158871818

素因数分解:

$2^1\times {\mathrm{641}}^1\times {\mathrm{1447}}^1\times {\mathrm{10867}}^1$

素因数の和:12957

約数の個数: 16

約数和(自身を含む): 30309200064

約数和(自身を除く): 10150328246

約数列:

[1, 2, 641, 1282, 1447, 2894, 10867, 21734, 927527, 1855054, 6965747, 13931494, 15724549, 31449098, 10079435909, 20158871818]

約数ペア:

[(1, 20158871818), (2, 10079435909), (641, 31449098), (1282, 15724549), (1447, 13931494), (2894, 6965747), (10867, 1855054), (21734, 927527)]