21126770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2203}}^1$

素因数の和:2354

約数の個数: 32

約数和(自身を含む): 43797888

約数和(自身を除く): 22671118

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 2203, 4406, 4795, 9590, 11015, 15421, 22030, 30842, 77105, 154210, 301811, 603622, 1509055, 2112677, 3018110, 4225354, 10563385, 21126770]

約数ペア:

[(1, 21126770), (2, 10563385), (5, 4225354), (7, 3018110), (10, 2112677), (14, 1509055), (35, 603622), (70, 301811), (137, 154210), (274, 77105), (685, 30842), (959, 22030), (1370, 15421), (1918, 11015), (2203, 9590), (4406, 4795)]