2891217

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:169

約数の個数: 24

約数和(自身を含む): 4600128

約数和(自身を除く): 1708911

約数列:

[1, 3, 7, 21, 37, 61, 111, 183, 259, 427, 777, 1281, 2257, 3721, 6771, 11163, 15799, 26047, 47397, 78141, 137677, 413031, 963739, 2891217]

約数ペア:

[(1, 2891217), (3, 963739), (7, 413031), (21, 137677), (37, 78141), (61, 47397), (111, 26047), (183, 15799), (259, 11163), (427, 6771), (777, 3721), (1281, 2257)]