211488147

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 340307968

約数和(自身を除く): 128819821

約数列:

[1, 3, 9, 13, 39, 43, 117, 127, 129, 331, 381, 387, 559, 993, 1143, 1651, 1677, 2979, 4303, 4953, 5031, 5461, 12909, 14233, 14859, 16383, 38727, 42037, 42699, 49149, 70993, 126111, 128097, 185029, 212979, 378333, 546481, 555087, 638937, 1639443, 1665261, 1807591, 4918329, 5422773, 16268319, 23498683, 70496049, 211488147]

約数ペア:

[(1, 211488147), (3, 70496049), (9, 23498683), (13, 16268319), (39, 5422773), (43, 4918329), (117, 1807591), (127, 1665261), (129, 1639443), (331, 638937), (381, 555087), (387, 546481), (559, 378333), (993, 212979), (1143, 185029), (1651, 128097), (1677, 126111), (2979, 70993), (4303, 49149), (4953, 42699), (5031, 42037), (5461, 38727), (12909, 16383), (14233, 14859)]