19812465

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3413}}^1$

素因数の和:3470

約数の個数: 32

約数和(自身を含む): 36051840

約数和(自身を除く): 16239375

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3413, 5805, 10239, 17065, 30717, 51195, 92151, 146759, 153585, 440277, 460755, 733795, 1320831, 2201385, 3962493, 6604155, 19812465]

約数ペア:

[(1, 19812465), (3, 6604155), (5, 3962493), (9, 2201385), (15, 1320831), (27, 733795), (43, 460755), (45, 440277), (129, 153585), (135, 146759), (215, 92151), (387, 51195), (645, 30717), (1161, 17065), (1935, 10239), (3413, 5805)]