18609669

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 30942912

約数和(自身を除く): 12333243

約数列:

[1, 3, 9, 13, 27, 39, 43, 81, 117, 129, 137, 243, 351, 387, 411, 559, 1053, 1161, 1233, 1677, 1781, 3159, 3483, 3699, 5031, 5343, 5891, 10449, 11097, 15093, 16029, 17673, 33291, 45279, 48087, 53019, 76583, 135837, 144261, 159057, 229749, 432783, 477171, 689247, 1431513, 2067741, 6203223, 18609669]

約数ペア:

[(1, 18609669), (3, 6203223), (9, 2067741), (13, 1431513), (27, 689247), (39, 477171), (43, 432783), (81, 229749), (117, 159057), (129, 144261), (137, 135837), (243, 76583), (351, 53019), (387, 48087), (411, 45279), (559, 33291), (1053, 17673), (1161, 16029), (1233, 15093), (1677, 11097), (1781, 10449), (3159, 5891), (3483, 5343), (3699, 5031)]