21333978

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 48087936

約数和(自身を除く): 26753958

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 103, 111, 206, 222, 309, 311, 333, 618, 622, 666, 927, 933, 1854, 1866, 2799, 3811, 5598, 7622, 11433, 11507, 22866, 23014, 32033, 34299, 34521, 64066, 68598, 69042, 96099, 103563, 192198, 207126, 288297, 576594, 1185221, 2370442, 3555663, 7111326, 10666989, 21333978]

約数ペア:

[(1, 21333978), (2, 10666989), (3, 7111326), (6, 3555663), (9, 2370442), (18, 1185221), (37, 576594), (74, 288297), (103, 207126), (111, 192198), (206, 103563), (222, 96099), (309, 69042), (311, 68598), (333, 64066), (618, 34521), (622, 34299), (666, 32033), (927, 23014), (933, 22866), (1854, 11507), (1866, 11433), (2799, 7622), (3811, 5598)]