21037184

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 48911040

約数和(自身を除く): 27873856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 443, 448, 742, 848, 886, 896, 1484, 1696, 1772, 2968, 3101, 3392, 3544, 5936, 6202, 6784, 7088, 11872, 12404, 14176, 23479, 23744, 24808, 28352, 46958, 47488, 49616, 56704, 93916, 99232, 164353, 187832, 198464, 328706, 375664, 396928, 657412, 751328, 1314824, 1502656, 2629648, 3005312, 5259296, 10518592, 21037184]

約数ペア:

[(1, 21037184), (2, 10518592), (4, 5259296), (7, 3005312), (8, 2629648), (14, 1502656), (16, 1314824), (28, 751328), (32, 657412), (53, 396928), (56, 375664), (64, 328706), (106, 198464), (112, 187832), (128, 164353), (212, 99232), (224, 93916), (371, 56704), (424, 49616), (443, 47488), (448, 46958), (742, 28352), (848, 24808), (886, 23744), (896, 23479), (1484, 14176), (1696, 12404), (1772, 11872), (2968, 7088), (3101, 6784), (3392, 6202), (3544, 5936)]