7031205

素因数分解:

$3^7\times 5^1\times {\mathrm{643}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 12673920

約数和(自身を除く): 5642715

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 643, 729, 1215, 1929, 2187, 3215, 3645, 5787, 9645, 10935, 17361, 28935, 52083, 86805, 156249, 260415, 468747, 781245, 1406241, 2343735, 7031205]

約数ペア:

[(1, 7031205), (3, 2343735), (5, 1406241), (9, 781245), (15, 468747), (27, 260415), (45, 156249), (81, 86805), (135, 52083), (243, 28935), (405, 17361), (643, 10935), (729, 9645), (1215, 5787), (1929, 3645), (2187, 3215)]