21047296

素因数分解:

$2^{11}\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 22195904

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 239, 256, 344, 478, 512, 688, 956, 1024, 1376, 1912, 2048, 2752, 3824, 5504, 7648, 10277, 11008, 15296, 20554, 22016, 30592, 41108, 44032, 61184, 82216, 88064, 122368, 164432, 244736, 328864, 489472, 657728, 1315456, 2630912, 5261824, 10523648, 21047296]

約数ペア:

[(1, 21047296), (2, 10523648), (4, 5261824), (8, 2630912), (16, 1315456), (32, 657728), (43, 489472), (64, 328864), (86, 244736), (128, 164432), (172, 122368), (239, 88064), (256, 82216), (344, 61184), (478, 44032), (512, 41108), (688, 30592), (956, 22016), (1024, 20554), (1376, 15296), (1912, 11008), (2048, 10277), (2752, 7648), (3824, 5504)]