247541865

素因数分解:

$3^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{20399}}^1$

素因数の和:21216

約数の個数: 16

約数和(自身を含む): 396576000

約数和(自身を除く): 149034135

約数列:

[1, 3, 5, 15, 809, 2427, 4045, 12135, 20399, 61197, 101995, 305985, 16502791, 49508373, 82513955, 247541865]

約数ペア:

[(1, 247541865), (3, 82513955), (5, 49508373), (15, 16502791), (809, 305985), (2427, 101995), (4045, 61197), (12135, 20399)]