20161864304

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{1906379}}^1$

素因数の和:1907048

約数の個数: 20

約数和(自身を含む): 39122730360

約数和(自身を除く): 18960866056

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2644, 5288, 10576, 1906379, 3812758, 7625516, 15251032, 30502064, 1260116519, 2520233038, 5040466076, 10080932152, 20161864304]

約数ペア:

[(1, 20161864304), (2, 10080932152), (4, 5040466076), (8, 2520233038), (16, 1260116519), (661, 30502064), (1322, 15251032), (2644, 7625516), (5288, 3812758), (10576, 1906379)]