213477940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{821069}}^1$

素因数の和:821091

約数の個数: 24

約数和(自身を含む): 482789160

約数和(自身を除く): 269311220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 821069, 1642138, 3284276, 4105345, 8210690, 10673897, 16421380, 21347794, 42695588, 53369485, 106738970, 213477940]

約数ペア:

[(1, 213477940), (2, 106738970), (4, 53369485), (5, 42695588), (10, 21347794), (13, 16421380), (20, 10673897), (26, 8210690), (52, 4105345), (65, 3284276), (130, 1642138), (260, 821069)]