21048944

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2647}}^1$

素因数の和:2733

約数の個数: 40

約数和(自身を含む): 47282688

約数和(自身を除く): 26233744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 2647, 3976, 5294, 7952, 10588, 18529, 21176, 37058, 42352, 74116, 148232, 187937, 296464, 375874, 751748, 1315559, 1503496, 2631118, 3006992, 5262236, 10524472, 21048944]

約数ペア:

[(1, 21048944), (2, 10524472), (4, 5262236), (7, 3006992), (8, 2631118), (14, 1503496), (16, 1315559), (28, 751748), (56, 375874), (71, 296464), (112, 187937), (142, 148232), (284, 74116), (497, 42352), (568, 37058), (994, 21176), (1136, 18529), (1988, 10588), (2647, 7952), (3976, 5294)]