21721294077

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{60843961}}^1$

素因数の和:60843988

約数の個数: 16

約数和(自身を含む): 35046122112

約数和(自身を除く): 13324828035

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 60843961, 182531883, 425907727, 1034347337, 1277723181, 3103042011, 7240431359, 21721294077]

約数ペア:

[(1, 21721294077), (3, 7240431359), (7, 3103042011), (17, 1277723181), (21, 1034347337), (51, 425907727), (119, 182531883), (357, 60843961)]