21370328

素因数分解:

$2^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1451}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 45999360

約数和(自身を除く): 24629032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 263, 526, 1052, 1451, 1841, 2104, 2902, 3682, 5804, 7364, 10157, 11608, 14728, 20314, 40628, 81256, 381613, 763226, 1526452, 2671291, 3052904, 5342582, 10685164, 21370328]

約数ペア:

[(1, 21370328), (2, 10685164), (4, 5342582), (7, 3052904), (8, 2671291), (14, 1526452), (28, 763226), (56, 381613), (263, 81256), (526, 40628), (1052, 20314), (1451, 14728), (1841, 11608), (2104, 10157), (2902, 7364), (3682, 5804)]