87913221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 132969600

約数和(自身を除く): 45056379

約数列:

[1, 3, 11, 33, 37, 89, 111, 267, 407, 809, 979, 1221, 2427, 2937, 3293, 8899, 9879, 26697, 29933, 36223, 72001, 89799, 108669, 216003, 329263, 792011, 987789, 2376033, 2664037, 7992111, 29304407, 87913221]

約数ペア:

[(1, 87913221), (3, 29304407), (11, 7992111), (33, 2664037), (37, 2376033), (89, 987789), (111, 792011), (267, 329263), (407, 216003), (809, 108669), (979, 89799), (1221, 72001), (2427, 36223), (2937, 29933), (3293, 26697), (8899, 9879)]