16380021

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14717}}^1$

素因数の和:14780

約数の個数: 16

約数和(自身を含む): 25432704

約数和(自身を除く): 9052683

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 14717, 44151, 103019, 309057, 780001, 2340003, 5460007, 16380021]

約数ペア:

[(1, 16380021), (3, 5460007), (7, 2340003), (21, 780001), (53, 309057), (159, 103019), (371, 44151), (1113, 14717)]