19993984

素因数分解:

$2^7\times {\mathrm{181}}^1\times {\mathrm{863}}^1$

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 20104256

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 181, 362, 724, 863, 1448, 1726, 2896, 3452, 5792, 6904, 11584, 13808, 23168, 27616, 55232, 110464, 156203, 312406, 624812, 1249624, 2499248, 4998496, 9996992, 19993984]

約数ペア:

[(1, 19993984), (2, 9996992), (4, 4998496), (8, 2499248), (16, 1249624), (32, 624812), (64, 312406), (128, 156203), (181, 110464), (362, 55232), (724, 27616), (863, 23168), (1448, 13808), (1726, 11584), (2896, 6904), (3452, 5792)]