279754479

素因数分解:

$3^9\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:321

約数の個数: 40

約数和(自身を含む): 428334192

約数和(自身を除く): 148579713

約数列:

[1, 3, 9, 27, 61, 81, 183, 233, 243, 549, 699, 729, 1647, 2097, 2187, 4941, 6291, 6561, 14213, 14823, 18873, 19683, 42639, 44469, 56619, 127917, 133407, 169857, 383751, 400221, 509571, 1151253, 1200663, 1528713, 3453759, 4586139, 10361277, 31083831, 93251493, 279754479]

約数ペア:

[(1, 279754479), (3, 93251493), (9, 31083831), (27, 10361277), (61, 4586139), (81, 3453759), (183, 1528713), (233, 1200663), (243, 1151253), (549, 509571), (699, 400221), (729, 383751), (1647, 169857), (2097, 133407), (2187, 127917), (4941, 56619), (6291, 44469), (6561, 42639), (14213, 19683), (14823, 18873)]