21400372

素因数分解:

$2^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1741}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 42922880

約数和(自身を除く): 21522508

約数列:

[1, 2, 4, 7, 14, 28, 439, 878, 1741, 1756, 3073, 3482, 6146, 6964, 12187, 12292, 24374, 48748, 764299, 1528598, 3057196, 5350093, 10700186, 21400372]

約数ペア:

[(1, 21400372), (2, 10700186), (4, 5350093), (7, 3057196), (14, 1528598), (28, 764299), (439, 48748), (878, 24374), (1741, 12292), (1756, 12187), (3073, 6964), (3482, 6146)]