20287395

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1459}}^1$

素因数の和:1576

約数の個数: 32

約数和(自身を含む): 36441600

約数和(自身を除く): 16154205

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1459, 1545, 2781, 4377, 4635, 7295, 13131, 13905, 21885, 39393, 65655, 150277, 196965, 450831, 751385, 1352493, 2254155, 4057479, 6762465, 20287395]

約数ペア:

[(1, 20287395), (3, 6762465), (5, 4057479), (9, 2254155), (15, 1352493), (27, 751385), (45, 450831), (103, 196965), (135, 150277), (309, 65655), (515, 39393), (927, 21885), (1459, 13905), (1545, 13131), (2781, 7295), (4377, 4635)]