2217865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 2898000

約数和(自身を除く): 680135

約数列:

[1, 5, 13, 65, 149, 229, 745, 1145, 1937, 2977, 9685, 14885, 34121, 170605, 443573, 2217865]

約数ペア:

[(1, 2217865), (5, 443573), (13, 170605), (65, 34121), (149, 14885), (229, 9685), (745, 2977), (1145, 1937)]