278370261

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{55331}}^1$

素因数の和:55393

約数の個数: 24

約数和(自身を含む): 443098656

約数和(自身を除く): 164728395

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 55331, 165993, 497979, 719303, 2157909, 2379233, 6473727, 7137699, 21413097, 30930029, 92790087, 278370261]

約数ペア:

[(1, 278370261), (3, 92790087), (9, 30930029), (13, 21413097), (39, 7137699), (43, 6473727), (117, 2379233), (129, 2157909), (387, 719303), (559, 497979), (1677, 165993), (5031, 55331)]