20804044245

素因数分解:

$3^1\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{641803}}^1$

素因数の和:643972

約数の個数: 16

約数和(自身を含む): 33301925952

約数和(自身を除く): 12497881707

約数列:

[1, 3, 5, 15, 2161, 6483, 10805, 32415, 641803, 1925409, 3209015, 9627045, 1386936283, 4160808849, 6934681415, 20804044245]

約数ペア:

[(1, 20804044245), (3, 6934681415), (5, 4160808849), (15, 1386936283), (2161, 9627045), (6483, 3209015), (10805, 1925409), (32415, 641803)]