20840535

素因数分解:

$3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1327}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 36254400

約数和(自身を除く): 15413865

約数列:

[1, 3, 5, 9, 15, 45, 349, 1047, 1327, 1745, 3141, 3981, 5235, 6635, 11943, 15705, 19905, 59715, 463123, 1389369, 2315615, 4168107, 6946845, 20840535]

約数ペア:

[(1, 20840535), (3, 6946845), (5, 4168107), (9, 2315615), (15, 1389369), (45, 463123), (349, 59715), (1047, 19905), (1327, 15705), (1745, 11943), (3141, 6635), (3981, 5235)]