28950243

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 19675677

約数列:

[1, 3, 7, 19, 21, 37, 53, 57, 111, 133, 159, 259, 371, 399, 703, 777, 1007, 1113, 1369, 1961, 2109, 3021, 4107, 4921, 5883, 7049, 9583, 13727, 14763, 21147, 26011, 28749, 37259, 41181, 72557, 78033, 111777, 182077, 217671, 260813, 507899, 546231, 782439, 1378583, 1523697, 4135749, 9650081, 28950243]

約数ペア:

[(1, 28950243), (3, 9650081), (7, 4135749), (19, 1523697), (21, 1378583), (37, 782439), (53, 546231), (57, 507899), (111, 260813), (133, 217671), (159, 182077), (259, 111777), (371, 78033), (399, 72557), (703, 41181), (777, 37259), (1007, 28749), (1113, 26011), (1369, 21147), (1961, 14763), (2109, 13727), (3021, 9583), (4107, 7049), (4921, 5883)]