20756655

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{967}}^1$

素因数の和:1037

約数の個数: 40

約数和(自身を含む): 37949472

約数和(自身を除く): 17192817

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 967, 1431, 2385, 2901, 4293, 4835, 7155, 8703, 14505, 21465, 26109, 43515, 51251, 78327, 130545, 153753, 256255, 391635, 461259, 768765, 1383777, 2306295, 4151331, 6918885, 20756655]

約数ペア:

[(1, 20756655), (3, 6918885), (5, 4151331), (9, 2306295), (15, 1383777), (27, 768765), (45, 461259), (53, 391635), (81, 256255), (135, 153753), (159, 130545), (265, 78327), (405, 51251), (477, 43515), (795, 26109), (967, 21465), (1431, 14505), (2385, 8703), (2901, 7155), (4293, 4835)]