19933904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{42961}}^1$

素因数の和:42998

約数の個数: 20

約数和(自身を含む): 39954660

約数和(自身を除く): 20020756

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 42961, 85922, 171844, 343688, 687376, 1245869, 2491738, 4983476, 9966952, 19933904]

約数ペア:

[(1, 19933904), (2, 9966952), (4, 4983476), (8, 2491738), (16, 1245869), (29, 687376), (58, 343688), (116, 171844), (232, 85922), (464, 42961)]