12778887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 19872000

約数和(自身を除く): 7093113

約数列:

[1, 3, 11, 19, 33, 57, 89, 209, 229, 267, 627, 687, 979, 1691, 2519, 2937, 4351, 5073, 7557, 13053, 18601, 20381, 47861, 55803, 61143, 143583, 224191, 387239, 672573, 1161717, 4259629, 12778887]

約数ペア:

[(1, 12778887), (3, 4259629), (11, 1161717), (19, 672573), (33, 387239), (57, 224191), (89, 143583), (209, 61143), (229, 55803), (267, 47861), (627, 20381), (687, 18601), (979, 13053), (1691, 7557), (2519, 5073), (2937, 4351)]