21296128

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2971}}^1$

素因数の和:2998

約数の個数: 44

約数和(自身を含む): 48669472

約数和(自身を除く): 27373344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2971, 3584, 5942, 7168, 11884, 20797, 23768, 41594, 47536, 83188, 95072, 166376, 190144, 332752, 380288, 665504, 760576, 1331008, 1521152, 2662016, 3042304, 5324032, 10648064, 21296128]

約数ペア:

[(1, 21296128), (2, 10648064), (4, 5324032), (7, 3042304), (8, 2662016), (14, 1521152), (16, 1331008), (28, 760576), (32, 665504), (56, 380288), (64, 332752), (112, 190144), (128, 166376), (224, 95072), (256, 83188), (448, 47536), (512, 41594), (896, 23768), (1024, 20797), (1792, 11884), (2971, 7168), (3584, 5942)]