21642656

素因数分解:

$2^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1823}}^1$

素因数の和:1893

約数の個数: 48

約数和(自身を含む): 49641984

約数和(自身を除く): 27999328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 106, 112, 212, 224, 371, 424, 742, 848, 1484, 1696, 1823, 2968, 3646, 5936, 7292, 11872, 12761, 14584, 25522, 29168, 51044, 58336, 96619, 102088, 193238, 204176, 386476, 408352, 676333, 772952, 1352666, 1545904, 2705332, 3091808, 5410664, 10821328, 21642656]

約数ペア:

[(1, 21642656), (2, 10821328), (4, 5410664), (7, 3091808), (8, 2705332), (14, 1545904), (16, 1352666), (28, 772952), (32, 676333), (53, 408352), (56, 386476), (106, 204176), (112, 193238), (212, 102088), (224, 96619), (371, 58336), (424, 51044), (742, 29168), (848, 25522), (1484, 14584), (1696, 12761), (1823, 11872), (2968, 7292), (3646, 5936)]