20998635

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{881}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 38610432

約数和(自身を除く): 17611797

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 227, 681, 881, 1135, 1589, 2643, 3405, 4405, 4767, 6167, 7945, 13215, 18501, 23835, 30835, 92505, 199987, 599961, 999935, 1399909, 2999805, 4199727, 6999545, 20998635]

約数ペア:

[(1, 20998635), (3, 6999545), (5, 4199727), (7, 2999805), (15, 1399909), (21, 999935), (35, 599961), (105, 199987), (227, 92505), (681, 30835), (881, 23835), (1135, 18501), (1589, 13215), (2643, 7945), (3405, 6167), (4405, 4767)]