81611649

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{7237}}^1$

素因数の和:7429

約数の個数: 24

約数和(自身を含む): 135495360

約数和(自身を除く): 53883711

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 3759, 7237, 11277, 21711, 50659, 65133, 151977, 455931, 1295423, 3886269, 9067961, 11658807, 27203883, 81611649]

約数ペア:

[(1, 81611649), (3, 27203883), (7, 11658807), (9, 9067961), (21, 3886269), (63, 1295423), (179, 455931), (537, 151977), (1253, 65133), (1611, 50659), (3759, 21711), (7237, 11277)]