18904065

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5021}}^1$

素因数の和:5280

約数の個数: 16

約数和(自身を含む): 30373056

約数和(自身を除く): 11468991

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 5021, 15063, 25105, 75315, 1260271, 3780813, 6301355, 18904065]

約数ペア:

[(1, 18904065), (3, 6301355), (5, 3780813), (15, 1260271), (251, 75315), (753, 25105), (1255, 15063), (3765, 5021)]