21743660

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1321}}^1$

素因数の和:2153

約数の個数: 24

約数和(自身を含む): 45751776

約数和(自身を除く): 24008116

約数列:

[1, 2, 4, 5, 10, 20, 823, 1321, 1646, 2642, 3292, 4115, 5284, 6605, 8230, 13210, 16460, 26420, 1087183, 2174366, 4348732, 5435915, 10871830, 21743660]

約数ペア:

[(1, 21743660), (2, 10871830), (4, 5435915), (5, 4348732), (10, 2174366), (20, 1087183), (823, 26420), (1321, 16460), (1646, 13210), (2642, 8230), (3292, 6605), (4115, 5284)]