21245864

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{91577}}^1$

素因数の和:91612

約数の個数: 16

約数和(自身を含む): 41210100

約数和(自身を除く): 19964236

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 91577, 183154, 366308, 732616, 2655733, 5311466, 10622932, 21245864]

約数ペア:

[(1, 21245864), (2, 10622932), (4, 5311466), (8, 2655733), (29, 732616), (58, 366308), (116, 183154), (232, 91577)]