19905465

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{57697}}^1$

素因数の和:57728

約数の個数: 16

約数和(自身を含む): 33234048

約数和(自身を除く): 13328583

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 57697, 173091, 288485, 865455, 1327031, 3981093, 6635155, 19905465]

約数ペア:

[(1, 19905465), (3, 6635155), (5, 3981093), (15, 1327031), (23, 865455), (69, 288485), (115, 173091), (345, 57697)]