20905108

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14087}}^1$

素因数の和:14151

約数の個数: 24

約数和(自身を含む): 42602112

約数和(自身を除く): 21697004

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 14087, 28174, 56348, 98609, 197218, 394436, 746611, 1493222, 2986444, 5226277, 10452554, 20905108]

約数ペア:

[(1, 20905108), (2, 10452554), (4, 5226277), (7, 2986444), (14, 1493222), (28, 746611), (53, 394436), (106, 197218), (212, 98609), (371, 56348), (742, 28174), (1484, 14087)]