331781805

素因数分解:

$3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{17939}}^1$

素因数の和:18090

約数の個数: 32

約数和(自身を含む): 594172800

約数和(自身を除く): 262390995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137, 411, 685, 1233, 2055, 3699, 6165, 17939, 18495, 53817, 89695, 161451, 269085, 484353, 807255, 2421765, 2457643, 7372929, 12288215, 22118787, 36864645, 66356361, 110593935, 331781805]

約数ペア:

[(1, 331781805), (3, 110593935), (5, 66356361), (9, 36864645), (15, 22118787), (27, 12288215), (45, 7372929), (135, 2457643), (137, 2421765), (411, 807255), (685, 484353), (1233, 269085), (2055, 161451), (3699, 89695), (6165, 53817), (17939, 18495)]