21982976

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2056

約数の個数: 36

約数和(自身を含む): 44923032

約数和(自身を除く): 22940056

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 688, 1376, 1997, 2752, 3994, 5504, 7988, 11008, 15976, 31952, 63904, 85871, 127808, 171742, 255616, 343484, 511232, 686968, 1373936, 2747872, 5495744, 10991488, 21982976]

約数ペア:

[(1, 21982976), (2, 10991488), (4, 5495744), (8, 2747872), (16, 1373936), (32, 686968), (43, 511232), (64, 343484), (86, 255616), (128, 171742), (172, 127808), (256, 85871), (344, 63904), (688, 31952), (1376, 15976), (1997, 11008), (2752, 7988), (3994, 5504)]