18195513

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3019}}^1$

素因数の和:3077

約数の個数: 24

約数和(自身を含む): 28919520

約数和(自身を除く): 10724007

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3019, 6027, 9057, 21133, 63399, 123779, 147931, 371337, 443793, 866453, 2599359, 6065171, 18195513]

約数ペア:

[(1, 18195513), (3, 6065171), (7, 2599359), (21, 866453), (41, 443793), (49, 371337), (123, 147931), (147, 123779), (287, 63399), (861, 21133), (2009, 9057), (3019, 6027)]