27657729

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 45714240

約数和(自身を除く): 18056511

約数列:

[1, 3, 9, 11, 33, 43, 73, 89, 99, 129, 219, 267, 387, 473, 657, 801, 803, 979, 1419, 2409, 2937, 3139, 3827, 4257, 6497, 7227, 8811, 9417, 11481, 19491, 28251, 34443, 34529, 42097, 58473, 71467, 103587, 126291, 214401, 279371, 310761, 378873, 643203, 838113, 2514339, 3073081, 9219243, 27657729]

約数ペア:

[(1, 27657729), (3, 9219243), (9, 3073081), (11, 2514339), (33, 838113), (43, 643203), (73, 378873), (89, 310761), (99, 279371), (129, 214401), (219, 126291), (267, 103587), (387, 71467), (473, 58473), (657, 42097), (801, 34529), (803, 34443), (979, 28251), (1419, 19491), (2409, 11481), (2937, 9417), (3139, 8811), (3827, 7227), (4257, 6497)]