78890031

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2393}}^1$

素因数の和:2453

約数の個数: 40

約数和(自身を含む): 132091344

約数和(自身を除く): 53201313

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 297, 333, 407, 891, 999, 1221, 2393, 2997, 3663, 7179, 10989, 21537, 26323, 32967, 64611, 78969, 88541, 193833, 236907, 265623, 710721, 796869, 973951, 2132163, 2390607, 2921853, 7171821, 8765559, 26296677, 78890031]

約数ペア:

[(1, 78890031), (3, 26296677), (9, 8765559), (11, 7171821), (27, 2921853), (33, 2390607), (37, 2132163), (81, 973951), (99, 796869), (111, 710721), (297, 265623), (333, 236907), (407, 193833), (891, 88541), (999, 78969), (1221, 64611), (2393, 32967), (2997, 26323), (3663, 21537), (7179, 10989)]