12772221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{55291}}^1$

素因数の和:55312

約数の個数: 16

約数和(自身を含む): 21232128

約数和(自身を除く): 8459907

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 55291, 165873, 387037, 608201, 1161111, 1824603, 4257407, 12772221]

約数ペア:

[(1, 12772221), (3, 4257407), (7, 1824603), (11, 1161111), (21, 608201), (33, 387037), (77, 165873), (231, 55291)]