18640281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{599}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10390119

約数列:

[1, 3, 11, 23, 33, 41, 69, 123, 253, 451, 599, 759, 943, 1353, 1797, 2829, 6589, 10373, 13777, 19767, 24559, 31119, 41331, 73677, 151547, 270149, 454641, 564857, 810447, 1694571, 6213427, 18640281]

約数ペア:

[(1, 18640281), (3, 6213427), (11, 1694571), (23, 810447), (33, 564857), (41, 454641), (69, 270149), (123, 151547), (253, 73677), (451, 41331), (599, 31119), (759, 24559), (943, 19767), (1353, 13777), (1797, 10373), (2829, 6589)]