2018196405

素因数分解:

$3^9\times 5^1\times {\mathrm{20507}}^1$

素因数の和:20539

約数の個数: 40

約数和(自身を含む): 3632869152

約数和(自身を除く): 1614672747

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2187, 3645, 6561, 10935, 19683, 20507, 32805, 61521, 98415, 102535, 184563, 307605, 553689, 922815, 1661067, 2768445, 4983201, 8305335, 14949603, 24916005, 44848809, 74748015, 134546427, 224244045, 403639281, 672732135, 2018196405]

約数ペア:

[(1, 2018196405), (3, 672732135), (5, 403639281), (9, 224244045), (15, 134546427), (27, 74748015), (45, 44848809), (81, 24916005), (135, 14949603), (243, 8305335), (405, 4983201), (729, 2768445), (1215, 1661067), (2187, 922815), (3645, 553689), (6561, 307605), (10935, 184563), (19683, 102535), (20507, 98415), (32805, 61521)]