21949952

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1058

約数の個数: 40

約数和(自身を含む): 44921976

約数和(自身を除く): 22972024

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 512, 688, 997, 1376, 1994, 2752, 3988, 5504, 7976, 11008, 15952, 22016, 31904, 42871, 63808, 85742, 127616, 171484, 255232, 342968, 510464, 685936, 1371872, 2743744, 5487488, 10974976, 21949952]

約数ペア:

[(1, 21949952), (2, 10974976), (4, 5487488), (8, 2743744), (16, 1371872), (32, 685936), (43, 510464), (64, 342968), (86, 255232), (128, 171484), (172, 127616), (256, 85742), (344, 63808), (512, 42871), (688, 31904), (997, 22016), (1376, 15952), (1994, 11008), (2752, 7976), (3988, 5504)]