20957412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{719}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 56125440

約数和(自身を除く): 35168028

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 347, 694, 719, 1041, 1388, 1438, 2082, 2157, 2429, 2876, 4164, 4314, 4858, 5033, 7287, 8628, 9716, 10066, 14574, 15099, 20132, 29148, 30198, 60396, 249493, 498986, 748479, 997972, 1496958, 1746451, 2993916, 3492902, 5239353, 6985804, 10478706, 20957412]

約数ペア:

[(1, 20957412), (2, 10478706), (3, 6985804), (4, 5239353), (6, 3492902), (7, 2993916), (12, 1746451), (14, 1496958), (21, 997972), (28, 748479), (42, 498986), (84, 249493), (347, 60396), (694, 30198), (719, 29148), (1041, 20132), (1388, 15099), (1438, 14574), (2082, 10066), (2157, 9716), (2429, 8628), (2876, 7287), (4164, 5033), (4314, 4858)]