20161904408

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18131209}}^1$

素因数の和:18131354

約数の個数: 16

約数和(自身を含む): 38075541000

約数和(自身を除く): 17913636592

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18131209, 36262418, 72524836, 145049672, 2520238051, 5040476102, 10080952204, 20161904408]

約数ペア:

[(1, 20161904408), (2, 10080952204), (4, 5040476102), (8, 2520238051), (139, 145049672), (278, 72524836), (556, 36262418), (1112, 18131209)]