21760256

素因数分解:

$2^8\times 7^1\times {\mathrm{12143}}^1$

素因数の和:12166

約数の個数: 36

約数和(自身を含む): 49644672

約数和(自身を除く): 27884416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 12143, 24286, 48572, 85001, 97144, 170002, 194288, 340004, 388576, 680008, 777152, 1360016, 1554304, 2720032, 3108608, 5440064, 10880128, 21760256]

約数ペア:

[(1, 21760256), (2, 10880128), (4, 5440064), (7, 3108608), (8, 2720032), (14, 1554304), (16, 1360016), (28, 777152), (32, 680008), (56, 388576), (64, 340004), (112, 194288), (128, 170002), (224, 97144), (256, 85001), (448, 48572), (896, 24286), (1792, 12143)]