21838496

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 23067904

約数列:

[1, 2, 4, 8, 16, 32, 43, 59, 86, 118, 172, 236, 269, 344, 472, 538, 688, 944, 1076, 1376, 1888, 2152, 2537, 4304, 5074, 8608, 10148, 11567, 15871, 20296, 23134, 31742, 40592, 46268, 63484, 81184, 92536, 126968, 185072, 253936, 370144, 507872, 682453, 1364906, 2729812, 5459624, 10919248, 21838496]

約数ペア:

[(1, 21838496), (2, 10919248), (4, 5459624), (8, 2729812), (16, 1364906), (32, 682453), (43, 507872), (59, 370144), (86, 253936), (118, 185072), (172, 126968), (236, 92536), (269, 81184), (344, 63484), (472, 46268), (538, 40592), (688, 31742), (944, 23134), (1076, 20296), (1376, 15871), (1888, 11567), (2152, 10148), (2537, 8608), (4304, 5074)]