138816489

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{9403}}^1$

素因数の和:9469

約数の個数: 32

約数和(自身を含む): 228705280

約数和(自身を除く): 89888791

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 2109, 4921, 9403, 14763, 28209, 65821, 178657, 197463, 347911, 535971, 1043733, 1250599, 2435377, 3751797, 6610309, 7306131, 19830927, 46272163, 138816489]

約数ペア:

[(1, 138816489), (3, 46272163), (7, 19830927), (19, 7306131), (21, 6610309), (37, 3751797), (57, 2435377), (111, 1250599), (133, 1043733), (259, 535971), (399, 347911), (703, 197463), (777, 178657), (2109, 65821), (4921, 28209), (9403, 14763)]