21241984

素因数分解:

$2^7\times {\mathrm{263}}^1\times {\mathrm{631}}^1$

素因数の和:908

約数の個数: 32

約数和(自身を含む): 42546240

約数和(自身を除く): 21304256

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 263, 526, 631, 1052, 1262, 2104, 2524, 4208, 5048, 8416, 10096, 16832, 20192, 33664, 40384, 80768, 165953, 331906, 663812, 1327624, 2655248, 5310496, 10620992, 21241984]

約数ペア:

[(1, 21241984), (2, 10620992), (4, 5310496), (8, 2655248), (16, 1327624), (32, 663812), (64, 331906), (128, 165953), (263, 80768), (526, 40384), (631, 33664), (1052, 20192), (1262, 16832), (2104, 10096), (2524, 8416), (4208, 5048)]