19964656

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21149}}^1$

素因数の和:21216

約数の個数: 20

約数和(自身を含む): 39339000

約数和(自身を除く): 19374344

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21149, 42298, 84596, 169192, 338384, 1247791, 2495582, 4991164, 9982328, 19964656]

約数ペア:

[(1, 19964656), (2, 9982328), (4, 4991164), (8, 2495582), (16, 1247791), (59, 338384), (118, 169192), (236, 84596), (472, 42298), (944, 21149)]