12721521

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{1753}}^1$

素因数の和:1856

約数の個数: 16

約数和(自身を含む): 17680320

約数和(自身を除く): 4958799

約数列:

[1, 3, 41, 59, 123, 177, 1753, 2419, 5259, 7257, 71873, 103427, 215619, 310281, 4240507, 12721521]

約数ペア:

[(1, 12721521), (3, 4240507), (41, 310281), (59, 215619), (123, 103427), (177, 71873), (1753, 7257), (2419, 5259)]