12921771

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 17690400

約数和(自身を除く): 4768629

約数列:

[1, 3, 53, 159, 181, 449, 543, 1347, 9593, 23797, 28779, 71391, 81269, 243807, 4307257, 12921771]

約数ペア:

[(1, 12921771), (3, 4307257), (53, 243807), (159, 81269), (181, 71391), (449, 28779), (543, 23797), (1347, 9593)]