21639252

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{887}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 53706240

約数和(自身を除く): 32066988

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 107, 114, 214, 228, 321, 428, 642, 887, 1284, 1774, 2033, 2661, 3548, 4066, 5322, 6099, 8132, 10644, 12198, 16853, 24396, 33706, 50559, 67412, 94909, 101118, 189818, 202236, 284727, 379636, 569454, 1138908, 1803271, 3606542, 5409813, 7213084, 10819626, 21639252]

約数ペア:

[(1, 21639252), (2, 10819626), (3, 7213084), (4, 5409813), (6, 3606542), (12, 1803271), (19, 1138908), (38, 569454), (57, 379636), (76, 284727), (107, 202236), (114, 189818), (214, 101118), (228, 94909), (321, 67412), (428, 50559), (642, 33706), (887, 24396), (1284, 16853), (1774, 12198), (2033, 10644), (2661, 8132), (3548, 6099), (4066, 5322)]