18649137

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 27941760

約数和(自身を除く): 9292623

約数列:

[1, 3, 13, 39, 41, 107, 109, 123, 321, 327, 533, 1391, 1417, 1599, 4173, 4251, 4387, 4469, 11663, 13161, 13407, 34989, 57031, 58097, 151619, 171093, 174291, 454857, 478183, 1434549, 6216379, 18649137]

約数ペア:

[(1, 18649137), (3, 6216379), (13, 1434549), (39, 478183), (41, 454857), (107, 174291), (109, 171093), (123, 151619), (321, 58097), (327, 57031), (533, 34989), (1391, 13407), (1417, 13161), (1599, 11663), (4173, 4469), (4251, 4387)]