18421285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{6991}}^1$

素因数の和:7044

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 5743067

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 6991, 34955, 118847, 216721, 594235, 1083605, 3684257, 18421285]

約数ペア:

[(1, 18421285), (5, 3684257), (17, 1083605), (31, 594235), (85, 216721), (155, 118847), (527, 34955), (2635, 6991)]