51391821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 80269056

約数和(自身を除く): 28877235

約数列:

[1, 3, 13, 23, 39, 47, 53, 69, 141, 159, 299, 529, 611, 689, 897, 1081, 1219, 1587, 1833, 2067, 2491, 3243, 3657, 6877, 7473, 14053, 15847, 20631, 24863, 28037, 32383, 42159, 47541, 57293, 74589, 84111, 97149, 171879, 323219, 364481, 744809, 969657, 1093443, 1317739, 2234427, 3953217, 17130607, 51391821]

約数ペア:

[(1, 51391821), (3, 17130607), (13, 3953217), (23, 2234427), (39, 1317739), (47, 1093443), (53, 969657), (69, 744809), (141, 364481), (159, 323219), (299, 171879), (529, 97149), (611, 84111), (689, 74589), (897, 57293), (1081, 47541), (1219, 42159), (1587, 32383), (1833, 28037), (2067, 24863), (2491, 20631), (3243, 15847), (3657, 14053), (6877, 7473)]