20786977911

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{89669}}^1$

素因数の和:89788

約数の個数: 48

約数和(自身を含む): 34347196800

約数和(自身を除く): 13560218889

約数列:

[1, 3, 7, 19, 21, 49, 57, 83, 133, 147, 249, 399, 581, 931, 1577, 1743, 2793, 4067, 4731, 11039, 12201, 33117, 77273, 89669, 231819, 269007, 627683, 1703711, 1883049, 4393781, 5111133, 7442527, 11925977, 13181343, 22327581, 35777931, 52097689, 83481839, 141408013, 156293067, 250445517, 364683823, 424224039, 989856091, 1094051469, 2969568273, 6928992637, 20786977911]

約数ペア:

[(1, 20786977911), (3, 6928992637), (7, 2969568273), (19, 1094051469), (21, 989856091), (49, 424224039), (57, 364683823), (83, 250445517), (133, 156293067), (147, 141408013), (249, 83481839), (399, 52097689), (581, 35777931), (931, 22327581), (1577, 13181343), (1743, 11925977), (2793, 7442527), (4067, 5111133), (4731, 4393781), (11039, 1883049), (12201, 1703711), (33117, 627683), (77273, 269007), (89669, 231819)]