12887919

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^2$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 21326760

約数和(自身を除く): 8438841

約数列:

[1, 3, 9, 11, 29, 33, 67, 87, 99, 201, 261, 319, 603, 737, 957, 1943, 2211, 2871, 4489, 5829, 6633, 13467, 17487, 21373, 40401, 49379, 64119, 130181, 148137, 192357, 390543, 444411, 1171629, 1431991, 4295973, 12887919]

約数ペア:

[(1, 12887919), (3, 4295973), (9, 1431991), (11, 1171629), (29, 444411), (33, 390543), (67, 192357), (87, 148137), (99, 130181), (201, 64119), (261, 49379), (319, 40401), (603, 21373), (737, 17487), (957, 13467), (1943, 6633), (2211, 5829), (2871, 4489)]