19918185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{189697}}^1$

素因数の和:189712

約数の個数: 16

約数和(自身を含む): 36422016

約数和(自身を除く): 16503831

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 189697, 569091, 948485, 1327879, 2845455, 3983637, 6639395, 19918185]

約数ペア:

[(1, 19918185), (3, 6639395), (5, 3983637), (7, 2845455), (15, 1327879), (21, 948485), (35, 569091), (105, 189697)]