18521541

素因数分解:

$3^4\times {\mathrm{251}}^1\times {\mathrm{911}}^1$

素因数の和:1174

約数の個数: 20

約数和(自身を含む): 27808704

約数和(自身を除く): 9287163

約数列:

[1, 3, 9, 27, 81, 251, 753, 911, 2259, 2733, 6777, 8199, 20331, 24597, 73791, 228661, 685983, 2057949, 6173847, 18521541]

約数ペア:

[(1, 18521541), (3, 6173847), (9, 2057949), (27, 685983), (81, 228661), (251, 73791), (753, 24597), (911, 20331), (2259, 8199), (2733, 6777)]