20505966948

素因数分解:

$2^2\times 3^2\times {\mathrm{509}}^1\times {\mathrm{1119077}}^1$

素因数の和:1119596

約数の個数: 36

約数和(自身を含む): 51936409980

約数和(自身を除く): 31430443032

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 509, 1018, 1527, 2036, 3054, 4581, 6108, 9162, 18324, 1119077, 2238154, 3357231, 4476308, 6714462, 10071693, 13428924, 20143386, 40286772, 569610193, 1139220386, 1708830579, 2278440772, 3417661158, 5126491737, 6835322316, 10252983474, 20505966948]

約数ペア:

[(1, 20505966948), (2, 10252983474), (3, 6835322316), (4, 5126491737), (6, 3417661158), (9, 2278440772), (12, 1708830579), (18, 1139220386), (36, 569610193), (509, 40286772), (1018, 20143386), (1527, 13428924), (2036, 10071693), (3054, 6714462), (4581, 4476308), (6108, 3357231), (9162, 2238154), (18324, 1119077)]