20841436

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 45868032

約数和(自身を除く): 25026596

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 157, 308, 314, 431, 628, 862, 1099, 1724, 1727, 2198, 3017, 3454, 4396, 4741, 6034, 6908, 9482, 12068, 12089, 18964, 24178, 33187, 48356, 66374, 67667, 132748, 135334, 270668, 473669, 744337, 947338, 1488674, 1894676, 2977348, 5210359, 10420718, 20841436]

約数ペア:

[(1, 20841436), (2, 10420718), (4, 5210359), (7, 2977348), (11, 1894676), (14, 1488674), (22, 947338), (28, 744337), (44, 473669), (77, 270668), (154, 135334), (157, 132748), (308, 67667), (314, 66374), (431, 48356), (628, 33187), (862, 24178), (1099, 18964), (1724, 12089), (1727, 12068), (2198, 9482), (3017, 6908), (3454, 6034), (4396, 4741)]