19187421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9842979

約数列:

[1, 3, 11, 33, 47, 89, 139, 141, 267, 417, 517, 979, 1529, 1551, 2937, 4183, 4587, 6533, 12371, 12549, 19599, 37113, 46013, 71863, 136081, 138039, 215589, 408243, 581437, 1744311, 6395807, 19187421]

約数ペア:

[(1, 19187421), (3, 6395807), (11, 1744311), (33, 581437), (47, 408243), (89, 215589), (139, 138039), (141, 136081), (267, 71863), (417, 46013), (517, 37113), (979, 19599), (1529, 12549), (1551, 12371), (2937, 6533), (4183, 4587)]