19820368

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72869}}^1$

素因数の和:72894

約数の個数: 20

約数和(自身を含む): 40661460

約数和(自身を除く): 20841092

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72869, 145738, 291476, 582952, 1165904, 1238773, 2477546, 4955092, 9910184, 19820368]

約数ペア:

[(1, 19820368), (2, 9910184), (4, 4955092), (8, 2477546), (16, 1238773), (17, 1165904), (34, 582952), (68, 291476), (136, 145738), (272, 72869)]